47968172 has 24 divisors (see below), whose sum is σ = 96368160. Its totient is φ = 20465280.

The previous prime is 47968171. The next prime is 47968183. The reversal of 47968172 is 27186974.

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

It is not an unprimeable number, because it can be changed into a prime (47968171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672 + ... + 10152.

It is an arithmetic number, because the mean of its divisors is an integer number (4015340).

Almost surely, 2^47968172 is an apocalyptic number.

It is an amenable number.

47968172 is an abundant number, since it is smaller than the sum of its proper divisors (48399988).

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

47968172 is a wasteful number, since it uses less digits than its factorization.

47968172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721 (or 7719 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 47968172 is about 6925.9058613296. The cubic root of 47968172 is about 363.3437739801.

The spelling of 47968172 in words is "forty-seven million, nine hundred sixty-eight thousand, one hundred seventy-two".