23028915 has 32 divisors (see below), whose sum is σ = 45351936. Its totient is φ = 9717120.

The previous prime is 23028857. The next prime is 23028937. The reversal of 23028915 is 51982032.

It is a happy number.

It is not a de Polignac number, because 23028915 - 2⁷ = 23028787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7071 + ... + 9800.

It is an arithmetic number, because the mean of its divisors is an integer number (1417248).

Almost surely, 2^23028915 is an apocalyptic number.

23028915 is a deficient number, since it is larger than the sum of its proper divisors (22323021).

23028915 is a wasteful number, since it uses less digits than its factorization.

23028915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16899.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 23028915 is about 4798.8451735808. The cubic root of 23028915 is about 284.5058225916.

The spelling of 23028915 in words is "twenty-three million, twenty-eight thousand, nine hundred fifteen".