23728965 has 16 divisors (see below), whose sum is σ = 40887168. Its totient is φ = 11681856.

The previous prime is 23728949. The next prime is 23728987. The reversal of 23728965 is 56982732.

It is not a de Polignac number, because 23728965 - 2⁴ = 23728949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60649 + ... + 61038.

It is an arithmetic number, because the mean of its divisors is an integer number (2555448).

Almost surely, 2^23728965 is an apocalyptic number.

It is an amenable number.

23728965 is a deficient number, since it is larger than the sum of its proper divisors (17158203).

23728965 is a wasteful number, since it uses less digits than its factorization.

23728965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121708.

The product of its digits is 181440, while the sum is 42.

The square root of 23728965 is about 4871.2385488703. The cubic root of 23728965 is about 287.3599670918.

The spelling of 23728965 in words is "twenty-three million, seven hundred twenty-eight thousand, nine hundred sixty-five".