47745172 has 6 divisors (see below), whose sum is σ = 83554058. Its totient is φ = 23872584.

The previous prime is 47745121. The next prime is 47745199. The reversal of 47745172 is 27154774.

It can be written as a sum of positive squares in only one way, i.e., 41525136 + 6220036 = 6444^2 + 2494^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968143 + ... + 5968150.

Almost surely, 2^47745172 is an apocalyptic number.

It is an amenable number.

47745172 is a deficient number, since it is larger than the sum of its proper divisors (35808886).

47745172 is a wasteful number, since it uses less digits than its factorization.

47745172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936297 (or 11936295 counting only the distinct ones).

The product of its digits is 54880, while the sum is 37.

The square root of 47745172 is about 6909.7881298923. The cubic root of 47745172 is about 362.7798476375.

The spelling of 47745172 in words is "forty-seven million, seven hundred forty-five thousand, one hundred seventy-two".