23856901 has 2 divisors, whose sum is σ = 23856902. Its totient is φ = 23856900.

The previous prime is 23856893. The next prime is 23856919. The reversal of 23856901 is 10965832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23136100 + 720801 = 4810^2 + 849^2 .

It is a cyclic number.

It is not a de Polignac number, because 23856901 - 2³ = 23856893 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_1498660 and since 23856901 and 1498660 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23856961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11928450 + 11928451.

It is an arithmetic number, because the mean of its divisors is an integer number (11928451).

Almost surely, 2^23856901 is an apocalyptic number.

It is an amenable number.

23856901 is a deficient number, since it is larger than the sum of its proper divisors (1).

23856901 is an equidigital number, since it uses as much as digits as its factorization.

23856901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 23856901 is about 4884.3526694947. The cubic root of 23856901 is about 287.8754806679.

The spelling of 23856901 in words is "twenty-three million, eight hundred fifty-six thousand, nine hundred one".