23728057 has 2 divisors, whose sum is σ = 23728058. Its totient is φ = 23728056.

The previous prime is 23728049. The next prime is 23728069. The reversal of 23728057 is 75082732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22553001 + 1175056 = 4749^2 + 1084^2 .

It is a cyclic number.

It is not a de Polignac number, because 23728057 - 2³ = 23728049 is a prime.

It is not a weakly prime, because it can be changed into another prime (23728357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11864028 + 11864029.

It is an arithmetic number, because the mean of its divisors is an integer number (11864029).

Almost surely, 2^23728057 is an apocalyptic number.

It is an amenable number.

23728057 is a deficient number, since it is larger than the sum of its proper divisors (1).

23728057 is an equidigital number, since it uses as much as digits as its factorization.

23728057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 23728057 is about 4871.1453478622. The cubic root of 23728057 is about 287.3563017237.

The spelling of 23728057 in words is "twenty-three million, seven hundred twenty-eight thousand, fifty-seven".