23971965 has 8 divisors (see below), whose sum is σ = 38355168. Its totient is φ = 12785040.

The previous prime is 23971931. The next prime is 23971979. The reversal of 23971965 is 56917932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23971965 - 2⁸ = 23971709 is a prime.

It is a super-2 number, since 2×23971965² = 1149310211922450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799051 + ... + 799080.

It is an arithmetic number, because the mean of its divisors is an integer number (4794396).

Almost surely, 2^23971965 is an apocalyptic number.

It is an amenable number.

23971965 is a deficient number, since it is larger than the sum of its proper divisors (14383203).

23971965 is a wasteful number, since it uses less digits than its factorization.

23971965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598139.

The product of its digits is 102060, while the sum is 42.

The square root of 23971965 is about 4896.1173392802. The cubic root of 23971965 is about 288.3375551151.

The spelling of 23971965 in words is "twenty-three million, nine hundred seventy-one thousand, nine hundred sixty-five".