23669961 has 16 divisors (see below), whose sum is σ = 36609024. Its totient is φ = 13323024.

The previous prime is 23669939. The next prime is 23669963. The reversal of 23669961 is 16996632.

It is not a de Polignac number, because 23669961 - 2⁵ = 23669929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23669963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7005 + ... + 9818.

It is an arithmetic number, because the mean of its divisors is an integer number (2288064).

Almost surely, 2^23669961 is an apocalyptic number.

23669961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23669961 is a deficient number, since it is larger than the sum of its proper divisors (12939063).

23669961 is a wasteful number, since it uses less digits than its factorization.

23669961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16900.

The product of its digits is 104976, while the sum is 42.

The square root of 23669961 is about 4865.1784139947. The cubic root of 23669961 is about 287.1215880953.

The spelling of 23669961 in words is "twenty-three million, six hundred sixty-nine thousand, nine hundred sixty-one".