23400961 has 4 divisors (see below), whose sum is σ = 23730624. Its totient is φ = 23071300.

The previous prime is 23400929. The next prime is 23400967. The reversal of 23400961 is 16900432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23400961 - 2⁵ = 23400929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23400967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164725 + ... + 164866.

It is an arithmetic number, because the mean of its divisors is an integer number (5932656).

Almost surely, 2^23400961 is an apocalyptic number.

It is an amenable number.

23400961 is a deficient number, since it is larger than the sum of its proper divisors (329663).

23400961 is an equidigital number, since it uses as much as digits as its factorization.

23400961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329662.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23400961 is about 4837.4539791093. The cubic root of 23400961 is about 286.0297660838.

The spelling of 23400961 in words is "twenty-three million, four hundred thousand, nine hundred sixty-one".