23656037 has 2 divisors, whose sum is σ = 23656038. Its totient is φ = 23656036.

The previous prime is 23656019. The next prime is 23656049. The reversal of 23656037 is 73065632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21585316 + 2070721 = 4646^2 + 1439^2 .

It is a cyclic number.

It is not a de Polignac number, because 23656037 - 2⁸ = 23655781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23655994 and 23656012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23656067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11828018 + 11828019.

It is an arithmetic number, because the mean of its divisors is an integer number (11828019).

Almost surely, 2^23656037 is an apocalyptic number.

It is an amenable number.

23656037 is a deficient number, since it is larger than the sum of its proper divisors (1).

23656037 is an equidigital number, since it uses as much as digits as its factorization.

23656037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 23656037 is about 4863.7472179380. The cubic root of 23656037 is about 287.0652767059.

The spelling of 23656037 in words is "twenty-three million, six hundred fifty-six thousand, thirty-seven".