23561646 has 8 divisors (see below), whose sum is σ = 47123304. Its totient is φ = 7853880.

The previous prime is 23561641. The next prime is 23561651. The reversal of 23561646 is 64616532.

It is an interprime number because it is at equal distance from previous prime (23561641) and next prime (23561651).

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

23561646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23561641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963465 + ... + 1963476.

It is an arithmetic number, because the mean of its divisors is an integer number (5890413).

Almost surely, 2^23561646 is an apocalyptic number.

23561646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23561646 is a wasteful number, since it uses less digits than its factorization.

23561646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926946.

The product of its digits is 25920, while the sum is 33.

The square root of 23561646 is about 4854.0339924644. The cubic root of 23561646 is about 286.6829571296.

The spelling of 23561646 in words is "twenty-three million, five hundred sixty-one thousand, six hundred forty-six".