47564644 has 24 divisors (see below), whose sum is σ = 87917760. Its totient is φ = 22470624.

The previous prime is 47564641. The next prime is 47564653. The reversal of 47564644 is 44646574.

It is a junction number, because it is equal to n+sod(n) for n = 47564597 and 47564606.

It is not an unprimeable number, because it can be changed into a prime (47564641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4522 + ... + 10750.

It is an arithmetic number, because the mean of its divisors is an integer number (3663240).

Almost surely, 2^47564644 is an apocalyptic number.

It is an amenable number.

47564644 is a deficient number, since it is larger than the sum of its proper divisors (40353116).

47564644 is a wasteful number, since it uses less digits than its factorization.

47564644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339 (or 6337 counting only the distinct ones).

The product of its digits is 322560, while the sum is 40.

The square root of 47564644 is about 6896.7125501938. The cubic root of 47564644 is about 362.3220377364.

The spelling of 47564644 in words is "forty-seven million, five hundred sixty-four thousand, six hundred forty-four".