23256866 has 8 divisors (see below), whose sum is σ = 35231004. Its totient is φ = 11513200.

The previous prime is 23256829. The next prime is 23256899. The reversal of 23256866 is 66865232.

It can be written as a sum of positive squares in 2 ways, for example, as 20295025 + 2961841 = 4505^2 + 1721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23256866² = 1081763632283912, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 57365 + ... + 57768.

Almost surely, 2^23256866 is an apocalyptic number.

23256866 is a deficient number, since it is larger than the sum of its proper divisors (11974138).

23256866 is a wasteful number, since it uses less digits than its factorization.

23256866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115236.

The product of its digits is 103680, while the sum is 38.

The square root of 23256866 is about 4822.5372989745. The cubic root of 23256866 is about 285.4414662191.

The spelling of 23256866 in words is "twenty-three million, two hundred fifty-six thousand, eight hundred sixty-six".