23208965 has 16 divisors (see below), whose sum is σ = 30563568. Its totient is φ = 16813056.

The previous prime is 23208947. The next prime is 23208973. The reversal of 23208965 is 56980232.

It can be written as a sum of positive squares in 8 ways, for example, as 494209 + 22714756 = 703^2 + 4766^2 .

It is not a de Polignac number, because 23208965 - 2⁶ = 23208901 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, 77 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1910223).

Almost surely, 2^23208965 is an apocalyptic number.

It is an amenable number.

23208965 is a deficient number, since it is larger than the sum of its proper divisors (7354603).

23208965 is a wasteful number, since it uses less digits than its factorization.

23208965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6808.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 23208965 is about 4817.5683700390. The cubic root of 23208965 is about 285.2453616998.

The spelling of 23208965 in words is "twenty-three million, two hundred eight thousand, nine hundred sixty-five".