47547664 has 20 divisors (see below), whose sum is σ = 94614604. Its totient is φ = 23131008.

The previous prime is 47547649. The next prime is 47547677. The reversal of 47547664 is 46674574.

It can be written as a sum of positive squares in 2 ways, for example, as 22467600 + 25080064 = 4740^2 + 5008^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47547664.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39567 + ... + 40750.

Almost surely, 2^47547664 is an apocalyptic number.

It is an amenable number.

47547664 is a deficient number, since it is larger than the sum of its proper divisors (47066940).

47547664 is a wasteful number, since it uses less digits than its factorization.

47547664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80362 (or 80356 counting only the distinct ones).

The product of its digits is 564480, while the sum is 43.

The square root of 47547664 is about 6895.4814190164. The cubic root of 47547664 is about 362.2789177498.

The spelling of 47547664 in words is "forty-seven million, five hundred forty-seven thousand, six hundred sixty-four".