47700172 has 24 divisors (see below), whose sum is σ = 90747216. Its totient is φ = 21807168.

The previous prime is 47700161. The next prime is 47700187. The reversal of 47700172 is 27100774.

It is a self number, because there is not a number n which added to its sum of digits gives 47700172.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (3781134).

Almost surely, 2^47700172 is an apocalyptic number.

It is an amenable number.

47700172 is a deficient number, since it is larger than the sum of its proper divisors (43047044).

47700172 is a wasteful number, since it uses less digits than its factorization.

47700172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697 (or 8695 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 47700172 is about 6906.5311119259. The cubic root of 47700172 is about 362.6658380322.

The spelling of 47700172 in words is "forty-seven million, seven hundred thousand, one hundred seventy-two".