23186969 has 6 divisors (see below), whose sum is σ = 25107966. Its totient is φ = 21403200.

The previous prime is 23186959. The next prime is 23186983. The reversal of 23186969 is 96968132.

It can be written as a sum of positive squares in 3 ways, for example, as 1471369 + 21715600 = 1213^2 + 4660^2 .

It is not a de Polignac number, because 23186969 - 2¹⁶ = 23121433 is a prime.

It is a super-2 number, since 2×23186969² = 1075271062813922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23186959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68432 + ... + 68769.

It is an arithmetic number, because the mean of its divisors is an integer number (4184661).

Almost surely, 2^23186969 is an apocalyptic number.

It is an amenable number.

23186969 is a deficient number, since it is larger than the sum of its proper divisors (1920997).

23186969 is a wasteful number, since it uses less digits than its factorization.

23186969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137227 (or 137214 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 23186969 is about 4815.2849344561. The cubic root of 23186969 is about 285.1552206683.

The spelling of 23186969 in words is "twenty-three million, one hundred eighty-six thousand, nine hundred sixty-nine".