23159646 has 12 divisors (see below), whose sum is σ = 50179272. Its totient is φ = 7719876.

The previous prime is 23159639. The next prime is 23159657. The reversal of 23159646 is 64695132.

It is a happy number.

23159646 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 9 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 23159646.

It is a congruent number.

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, 643306 + ... + 643341.

It is an arithmetic number, because the mean of its divisors is an integer number (4181606).

Almost surely, 2^23159646 is an apocalyptic number.

23159646 is an abundant number, since it is smaller than the sum of its proper divisors (27019626).

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

23159646 is a wasteful number, since it uses less digits than its factorization.

23159646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286655 (or 1286652 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 23159646 is about 4812.4469867210. The cubic root of 23159646 is about 285.0431698226.

The spelling of 23159646 in words is "twenty-three million, one hundred fifty-nine thousand, six hundred forty-six".