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9996791 = 71428113
BaseRepresentation
bin100110001000…
…100111110111
3200210220000112
4212020213313
510024344131
6554133235
7150654110
oct46104767
920726015
109996791
115708812
12342121b
1320c027c
141483207
15d2702b
hex9889f7

9996791 has 4 divisors (see below), whose sum is σ = 11424912. Its totient is φ = 8568672.

The previous prime is 9996781. The next prime is 9996803. The reversal of 9996791 is 1976999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1976999 = 6073257.

It is a de Polignac number, because none of the positive numbers 2k-9996791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9996751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714050 + ... + 714063.

It is an arithmetic number, because the mean of its divisors is an integer number (2856228).

Almost surely, 29996791 is an apocalyptic number.

9996791 is a deficient number, since it is larger than the sum of its proper divisors (1428121).

9996791 is a wasteful number, since it uses less digits than its factorization.

9996791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428120.

The product of its digits is 275562, while the sum is 50.

The square root of 9996791 is about 3161.7702320061. The cubic root of 9996791 is about 215.4204212679.

The spelling of 9996791 in words is "nine million, nine hundred ninety-six thousand, seven hundred ninety-one".

Divisors: 1 7 1428113 9996791