23771965 has 16 divisors (see below), whose sum is σ = 32699520. Its totient is φ = 16251840.

The previous prime is 23771927. The next prime is 23771977. The reversal of 23771965 is 56917732.

It is not a de Polignac number, because 23771965 - 2⁹ = 23771453 is a prime.

It is a super-2 number, since 2×23771965² = 1130212639922450, 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 15 ways as a sum of consecutive naturals, for example, 13855 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (2043720).

Almost surely, 2^23771965 is an apocalyptic number.

It is an amenable number.

23771965 is a deficient number, since it is larger than the sum of its proper divisors (8927555).

23771965 is a wasteful number, since it uses less digits than its factorization.

23771965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052.

The product of its digits is 79380, while the sum is 40.

The square root of 23771965 is about 4875.6502130485. The cubic root of 23771965 is about 287.5334403447.

The spelling of 23771965 in words is "twenty-three million, seven hundred seventy-one thousand, nine hundred sixty-five".