909974923 has 24 divisors (see below), whose sum is σ = 1131554880. Its totient is φ = 723396960.

The previous prime is 909974917. The next prime is 909974927. The reversal of 909974923 is 329479909.

It is not a de Polignac number, because 909974923 - 2²¹ = 907877771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (909974927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22440 + ... + 48202.

It is an arithmetic number, because the mean of its divisors is an integer number (47148120).

Almost surely, 2^909974923 is an apocalyptic number.

909974923 is a deficient number, since it is larger than the sum of its proper divisors (221579957).

909974923 is a wasteful number, since it uses less digits than its factorization.

909974923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25819 (or 25806 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 52.

The square root of 909974923 is about 30165.7906079055. The cubic root of 909974923 is about 969.0432068258.

The spelling of 909974923 in words is "nine hundred nine million, nine hundred seventy-four thousand, nine hundred twenty-three".