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9994873 = 72203977
BaseRepresentation
bin100110001000…
…001001111001
3200210210101111
4212020021321
510024313443
6554120321
7150645400
oct46101171
920723344
109994873
115707329
1234200a1
1320bc435
141482637
15d2669d
hex988279

9994873 has 6 divisors (see below), whose sum is σ = 11626746. Its totient is φ = 8566992.

The previous prime is 9994871. The next prime is 9994913. The reversal of 9994873 is 3784999.

It can be written as a sum of positive squares in only one way, i.e., 9966649 + 28224 = 3157^2 + 168^2 .

It is not a de Polignac number, because 9994873 - 21 = 9994871 is a prime.

It is a super-2 number, since 2×99948732 = 199794972572258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 203977 = 9994873 / (9 + 9 + 9 + 4 + 8 + 7 + 3).

It is a Duffinian number.

9994873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9994871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101940 + ... + 102037.

It is an arithmetic number, because the mean of its divisors is an integer number (1937791).

Almost surely, 29994873 is an apocalyptic number.

It is an amenable number.

9994873 is a deficient number, since it is larger than the sum of its proper divisors (1631873).

9994873 is a wasteful number, since it uses less digits than its factorization.

9994873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203991 (or 203984 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 9994873 is about 3161.4669063585. The cubic root of 9994873 is about 215.4066434201.

The spelling of 9994873 in words is "nine million, nine hundred ninety-four thousand, eight hundred seventy-three".

Divisors: 1 7 49 203977 1427839 9994873