23648945 has 12 divisors (see below), whose sum is σ = 29669556. Its totient is φ = 18094560.

The previous prime is 23648881. The next prime is 23648951. The reversal of 23648945 is 54984632.

It can be written as a sum of positive squares in 2 ways, for example, as 12061729 + 11587216 = 3473^2 + 3404^2 .

It is not a de Polignac number, because 23648945 - 2⁶ = 23648881 is a prime.

It is a super-2 number, since 2×23648945² = 1118545199226050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1826 + ... + 7115.

It is an arithmetic number, because the mean of its divisors is an integer number (2472463).

Almost surely, 2^23648945 is an apocalyptic number.

It is an amenable number.

23648945 is a deficient number, since it is larger than the sum of its proper divisors (6020611).

23648945 is an equidigital number, since it uses as much as digits as its factorization.

23648945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992 (or 8969 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 23648945 is about 4863.0180957920. The cubic root of 23648945 is about 287.0365867718.

The spelling of 23648945 in words is "twenty-three million, six hundred forty-eight thousand, nine hundred forty-five".