23649057 has 32 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 14598144.

The previous prime is 23649019. The next prime is 23649061. The reversal of 23649057 is 75094632.

23649057 is a `hidden beast` number, since 2 + 3 + 649 + 0 + 5 + 7 = 666.

It is not a de Polignac number, because 23649057 - 2¹⁵ = 23616289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23649557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30369 + ... + 31137.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 2^23649057 is an apocalyptic number.

23649057 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23649057 is a deficient number, since it is larger than the sum of its proper divisors (14050143).

23649057 is a wasteful number, since it uses less digits than its factorization.

23649057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 23649057 is about 4863.0296112609. The cubic root of 23649057 is about 287.0370399005.

The spelling of 23649057 in words is "twenty-three million, six hundred forty-nine thousand, fifty-seven".