23031859 has 2 divisors, whose sum is σ = 23031860. Its totient is φ = 23031858.

The previous prime is 23031823. The next prime is 23031863. The reversal of 23031859 is 95813032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23031859 - 2¹⁵ = 22999091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23031859.

It is not a weakly prime, because it can be changed into another prime (23031559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515929 + 11515930.

It is an arithmetic number, because the mean of its divisors is an integer number (11515930).

Almost surely, 2^23031859 is an apocalyptic number.

23031859 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031859 is an equidigital number, since it uses as much as digits as its factorization.

23031859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 23031859 is about 4799.1519042431. The cubic root of 23031859 is about 284.5179457486.

The spelling of 23031859 in words is "twenty-three million, thirty-one thousand, eight hundred fifty-nine".