47989770 has 32 divisors (see below), whose sum is σ = 116569152. Its totient is φ = 12642432.

The previous prime is 47989769. The next prime is 47989783. The reversal of 47989770 is 7798974.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7147 + ... + 12126.

It is an arithmetic number, because the mean of its divisors is an integer number (3642786).

Almost surely, 2^47989770 is an apocalyptic number.

47989770 is an abundant number, since it is smaller than the sum of its proper divisors (68579382).

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

47989770 is a wasteful number, since it uses less digits than its factorization.

47989770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19366.

The product of its (nonzero) digits is 889056, while the sum is 51.

The square root of 47989770 is about 6927.4649042778. The cubic root of 47989770 is about 363.3982984769.

The spelling of 47989770 in words is "forty-seven million, nine hundred eighty-nine thousand, seven hundred seventy".