23236965 has 12 divisors (see below), whose sum is σ = 40277484. Its totient is φ = 12393024.

The previous prime is 23236963. The next prime is 23237003. The reversal of 23236965 is 56963232.

23236965 is a `hidden beast` number, since 232 + 369 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16916769 + 6320196 = 4113^2 + 2514^2 .

It is not a de Polignac number, because 23236965 - 2¹ = 23236963 is a prime.

It is a super-2 number, since 2×23236965² = 1079913084822450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23236963) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 258144 + ... + 258233.

It is an arithmetic number, because the mean of its divisors is an integer number (3356457).

Almost surely, 2^23236965 is an apocalyptic number.

It is an amenable number.

23236965 is a deficient number, since it is larger than the sum of its proper divisors (17040519).

23236965 is a wasteful number, since it uses less digits than its factorization.

23236965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516388 (or 516385 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 23236965 is about 4820.4735244579. The cubic root of 23236965 is about 285.3600251558.

The spelling of 23236965 in words is "twenty-three million, two hundred thirty-six thousand, nine hundred sixty-five".