23670666 has 12 divisors (see below), whose sum is σ = 51286482. Its totient is φ = 7890216.

The previous prime is 23670659. The next prime is 23670671. The reversal of 23670666 is 66607632.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 2187441 = 4635^2 + 1479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23670666.

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 5 ways as a sum of consecutive naturals, for example, 657501 + ... + 657536.

Almost surely, 2^23670666 is an apocalyptic number.

23670666 is an abundant number, since it is smaller than the sum of its proper divisors (27615816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23670666 is a wasteful number, since it uses less digits than its factorization.

23670666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315045 (or 1315042 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 23670666 is about 4865.2508671188. The cubic root of 23670666 is about 287.1244386663.

It can be divided in two parts, 23670 and 666, that added together give a square (24336 = 156²).

The spelling of 23670666 in words is "twenty-three million, six hundred seventy thousand, six hundred sixty-six".