23028313 has 16 divisors (see below), whose sum is σ = 29961216. Its totient is φ = 17162640.

The previous prime is 23028311. The next prime is 23028331. The reversal of 23028313 is 31382032.

It is a happy number.

It is not a de Polignac number, because 23028313 - 2¹ = 23028311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23028311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4731 + ... + 8272.

It is an arithmetic number, because the mean of its divisors is an integer number (1872576).

Almost surely, 2^23028313 is an apocalyptic number.

23028313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23028313 is a deficient number, since it is larger than the sum of its proper divisors (6932903).

23028313 is a wasteful number, since it uses less digits than its factorization.

23028313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13044.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 23028313 is about 4798.7824497470. The cubic root of 23028313 is about 284.5033434764.

Subtracting from 23028313 its sum of digits (22), we obtain a triangular number (23028291 = T₆₇₈₆).

The spelling of 23028313 in words is "twenty-three million, twenty-eight thousand, three hundred thirteen".