47170988 has 12 divisors (see below), whose sum is σ = 87405192. Its totient is φ = 22198080.

The previous prime is 47170973. The next prime is 47171009. The reversal of 47170988 is 88907174.

It is a super-2 number, since 2×47170988² = 4450204217792288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 346778 + ... + 346913.

It is an arithmetic number, because the mean of its divisors is an integer number (7283766).

Almost surely, 2^47170988 is an apocalyptic number.

It is an amenable number.

47170988 is a deficient number, since it is larger than the sum of its proper divisors (40234204).

47170988 is a wasteful number, since it uses less digits than its factorization.

47170988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693712 (or 693710 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 47170988 is about 6868.1138604423. The cubic root of 47170988 is about 361.3197138000.

The spelling of 47170988 in words is "forty-seven million, one hundred seventy thousand, nine hundred eighty-eight".