23804381 has 2 divisors, whose sum is σ = 23804382. Its totient is φ = 23804380.

The previous prime is 23804377. The next prime is 23804399. The reversal of 23804381 is 18340832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 3644281 = 4490^2 + 1909^2 .

It is a cyclic number.

It is not a de Polignac number, because 23804381 - 2² = 23804377 is a prime.

It is a super-2 number, since 2×23804381² = 1133297109586322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23804881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11902190 + 11902191.

It is an arithmetic number, because the mean of its divisors is an integer number (11902191).

Almost surely, 2^23804381 is an apocalyptic number.

It is an amenable number.

23804381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23804381 is an equidigital number, since it uses as much as digits as its factorization.

23804381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 23804381 is about 4878.9733551230. The cubic root of 23804381 is about 287.6640767277.

The spelling of 23804381 in words is "twenty-three million, eight hundred four thousand, three hundred eighty-one".