47989808 has 20 divisors (see below), whose sum is σ = 93555768. Its totient is φ = 23846400.

The previous prime is 47989787. The next prime is 47989813. The reversal of 47989808 is 80898974.

It is a self number, because there is not a number n which added to its sum of digits gives 47989808.

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, 6593 + ... + 11808.

Almost surely, 2^47989808 is an apocalyptic number.

It is an amenable number.

47989808 is a deficient number, since it is larger than the sum of its proper divisors (45565960).

47989808 is a wasteful number, since it uses less digits than its factorization.

47989808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18572 (or 18566 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 47989808 is about 6927.4676469833. The cubic root of 47989808 is about 363.3983943941.

The spelling of 47989808 in words is "forty-seven million, nine hundred eighty-nine thousand, eight hundred eight".