47775172 has 12 divisors (see below), whose sum is σ = 83654956. Its totient is φ = 23873760.

The previous prime is 47775113. The next prime is 47775173. The reversal of 47775172 is 27157774.

It can be written as a sum of positive squares in 2 ways, for example, as 37380996 + 10394176 = 6114^2 + 3224^2 .

It is not an unprimeable number, because it can be changed into a prime (47775173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11722 + ... + 15262.

Almost surely, 2^47775172 is an apocalyptic number.

It is an amenable number.

47775172 is a deficient number, since it is larger than the sum of its proper divisors (35879784).

47775172 is a wasteful number, since it uses less digits than its factorization.

47775172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918 (or 6916 counting only the distinct ones).

The product of its digits is 96040, while the sum is 40.

The square root of 47775172 is about 6911.9586225613. The cubic root of 47775172 is about 362.8558142487.

The spelling of 47775172 in words is "forty-seven million, seven hundred seventy-five thousand, one hundred seventy-two".