23671965 has 32 divisors (see below), whose sum is σ = 39497472. Its totient is φ = 12096000.

The previous prime is 23671957. The next prime is 23671969. The reversal of 23671965 is 56917632.

It is not a de Polignac number, because 23671965 - 2³ = 23671957 is a prime.

It is a super-2 number, since 2×23671965² = 1120723853922450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23671969) 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 31 ways as a sum of consecutive naturals, for example, 37200 + ... + 37830.

It is an arithmetic number, because the mean of its divisors is an integer number (1234296).

Almost surely, 2^23671965 is an apocalyptic number.

It is an amenable number.

23671965 is a deficient number, since it is larger than the sum of its proper divisors (15825507).

23671965 is a wasteful number, since it uses less digits than its factorization.

23671965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its digits is 68040, while the sum is 39.

The square root of 23671965 is about 4865.3843630283. The cubic root of 23671965 is about 287.1296908467.

The spelling of 23671965 in words is "twenty-three million, six hundred seventy-one thousand, nine hundred sixty-five".