23926381 has 2 divisors, whose sum is σ = 23926382. Its totient is φ = 23926380.

The previous prime is 23926369. The next prime is 23926387. The reversal of 23926381 is 18362932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21706281 + 2220100 = 4659^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 23926381 - 2⁵ = 23926349 is a prime.

It is a super-2 number, since 2×23926381² = 1144943415514322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23926387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11963190 + 11963191.

It is an arithmetic number, because the mean of its divisors is an integer number (11963191).

Almost surely, 2^23926381 is an apocalyptic number.

It is an amenable number.

23926381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23926381 is an equidigital number, since it uses as much as digits as its factorization.

23926381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 23926381 is about 4891.4600069918. The cubic root of 23926381 is about 288.1546759476.

The spelling of 23926381 in words is "twenty-three million, nine hundred twenty-six thousand, three hundred eighty-one".