23385765 has 32 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 11241216.

The previous prime is 23385737. The next prime is 23385781. The reversal of 23385765 is 56758332.

It is a de Polignac number, because none of the positive numbers 2^k-23385765 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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, 6991 + ... + 9779.

It is an arithmetic number, because the mean of its divisors is an integer number (1288980).

Almost surely, 2^23385765 is an apocalyptic number.

It is an amenable number.

23385765 is a deficient number, since it is larger than the sum of its proper divisors (17861595).

23385765 is a wasteful number, since it uses less digits than its factorization.

23385765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853.

The product of its digits is 151200, while the sum is 39.

The square root of 23385765 is about 4835.8830631023. The cubic root of 23385765 is about 285.9678391469.

The spelling of 23385765 in words is "twenty-three million, three hundred eighty-five thousand, seven hundred sixty-five".