2308923 has 12 divisors (see below), whose sum is σ = 3531528. Its totient is φ = 1448640.

The previous prime is 2308919. The next prime is 2308931. The reversal of 2308923 is 3298032.

It is not a de Polignac number, because 2308923 - 2² = 2308919 is a prime.

It is a super-2 number, since 2×2308923² = 10662250839858, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2308903) 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 11 ways as a sum of consecutive naturals, for example, 7393 + ... + 7698.

It is an arithmetic number, because the mean of its divisors is an integer number (294294).

2^2308923 is an apocalyptic number.

2308923 is a deficient number, since it is larger than the sum of its proper divisors (1222605).

2308923 is a wasteful number, since it uses less digits than its factorization.

2308923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15114 (or 15111 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2308923 is about 1519.5140670622. The cubic root of 2308923 is about 132.1710935660.

The spelling of 2308923 in words is "two million, three hundred eight thousand, nine hundred twenty-three".