47077172 has 18 divisors (see below), whose sum is σ = 84681702. Its totient is φ = 22899744.

The previous prime is 47077153. The next prime is 47077183. The reversal of 47077172 is 27177074.

It can be written as a sum of positive squares in 3 ways, for example, as 31427236 + 15649936 = 5606^2 + 3956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1178 + ... + 9774.

It is an arithmetic number, because the mean of its divisors is an integer number (4704539).

Almost surely, 2^47077172 is an apocalyptic number.

It is an amenable number.

47077172 is a deficient number, since it is larger than the sum of its proper divisors (37604530).

47077172 is a wasteful number, since it uses less digits than its factorization.

47077172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675 (or 8636 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 47077172 is about 6861.2806384814. The cubic root of 47077172 is about 361.0800179689.

The spelling of 47077172 in words is "forty-seven million, seventy-seven thousand, one hundred seventy-two".