23579965 has 16 divisors (see below), whose sum is σ = 29148336. Its totient is φ = 18304000.

The previous prime is 23579957. The next prime is 23579971. The reversal of 23579965 is 56997532.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 597529 + 22982436 = 773^2 + 4794^2 .

It is not a de Polignac number, because 23579965 - 2³ = 23579957 is a prime.

It is a Duffinian number.

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, 26325 + ... + 27205.

It is an arithmetic number, because the mean of its divisors is an integer number (1821771).

Almost surely, 2^23579965 is an apocalyptic number.

It is an amenable number.

23579965 is a deficient number, since it is larger than the sum of its proper divisors (5568371).

23579965 is a wasteful number, since it uses less digits than its factorization.

23579965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its digits is 510300, while the sum is 46.

The square root of 23579965 is about 4855.9206130249. The cubic root of 23579965 is about 286.7572358199.

It can be divided in two parts, 235 and 79965, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 23579965 in words is "twenty-three million, five hundred seventy-nine thousand, nine hundred sixty-five".