23834557 has 2 divisors, whose sum is σ = 23834558. Its totient is φ = 23834556.

The previous prime is 23834521. The next prime is 23834563. The reversal of 23834557 is 75543832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23609881 + 224676 = 4859^2 + 474^2 .

It is a cyclic number.

It is not a de Polignac number, because 23834557 - 2¹⁹ = 23310269 is a prime.

It is a super-2 number, since 2×23834557² = 1136172214772498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23834507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11917278 + 11917279.

It is an arithmetic number, because the mean of its divisors is an integer number (11917279).

Almost surely, 2^23834557 is an apocalyptic number.

It is an amenable number.

23834557 is a deficient number, since it is larger than the sum of its proper divisors (1).

23834557 is an equidigital number, since it uses as much as digits as its factorization.

23834557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 23834557 is about 4882.0648295573. The cubic root of 23834557 is about 287.7855793725.

The spelling of 23834557 in words is "twenty-three million, eight hundred thirty-four thousand, five hundred fifty-seven".