23700665 has 8 divisors (see below), whose sum is σ = 29134728. Its totient is φ = 18497920.

The previous prime is 23700661. The next prime is 23700667. The reversal of 23700665 is 56600732.

It can be written as a sum of positive squares in 4 ways, for example, as 2393209 + 21307456 = 1547^2 + 4616^2 .

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

It is not a de Polignac number, because 23700665 - 2² = 23700661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23700661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57602 + ... + 58011.

It is an arithmetic number, because the mean of its divisors is an integer number (3641841).

Almost surely, 2^23700665 is an apocalyptic number.

It is an amenable number.

23700665 is a deficient number, since it is larger than the sum of its proper divisors (5434063).

23700665 is a wasteful number, since it uses less digits than its factorization.

23700665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115659.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 23700665 is about 4868.3328768686. The cubic root of 23700665 is about 287.2456831051.

The spelling of 23700665 in words is "twenty-three million, seven hundred thousand, six hundred sixty-five".