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989473 = 4323011
BaseRepresentation
bin11110001100100100001
31212021022011
43301210201
5223130343
633112521
711260522
oct3614441
91767264
10989473
11616451
123b8741
132884b4
141ba849
1514829d
hexf1921

989473 has 4 divisors (see below), whose sum is σ = 1012528. Its totient is φ = 966420.

The previous prime is 989467. The next prime is 989477. The reversal of 989473 is 374989.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 989473 - 25 = 989441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11463 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (253132).

2989473 is an apocalyptic number.

It is an amenable number.

989473 is a deficient number, since it is larger than the sum of its proper divisors (23055).

989473 is a wasteful number, since it uses less digits than its factorization.

989473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23054.

The product of its digits is 54432, while the sum is 40.

The square root of 989473 is about 994.7225743895. The cubic root of 989473 is about 99.6478614399.

The spelling of 989473 in words is "nine hundred eighty-nine thousand, four hundred seventy-three".

Divisors: 1 43 23011 989473