23405967 has 24 divisors (see below), whose sum is σ = 38329200. Its totient is φ = 13644288.

The previous prime is 23405951. The next prime is 23405971. The reversal of 23405967 is 76950432.

23405967 is a `hidden beast` number, since 23 + 40 + 596 + 7 = 666.

It is not a de Polignac number, because 23405967 - 2⁴ = 23405951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23405947) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3042 + ... + 7487.

It is an arithmetic number, because the mean of its divisors is an integer number (1597050).

Almost surely, 2^23405967 is an apocalyptic number.

23405967 is a deficient number, since it is larger than the sum of its proper divisors (14923233).

23405967 is a wasteful number, since it uses less digits than its factorization.

23405967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10567 (or 10564 counting only the distinct ones).

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

The square root of 23405967 is about 4837.9713723833. The cubic root of 23405967 is about 286.0501607294.

The spelling of 23405967 in words is "twenty-three million, four hundred five thousand, nine hundred sixty-seven".