47731672 has 8 divisors (see below), whose sum is σ = 89496900. Its totient is φ = 23865832.

The previous prime is 47731643. The next prime is 47731687. The reversal of 47731672 is 27613774.

47731672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2983222 + ... + 2983237.

Almost surely, 2^47731672 is an apocalyptic number.

It is an amenable number.

47731672 is a deficient number, since it is larger than the sum of its proper divisors (41765228).

47731672 is a wasteful number, since it uses less digits than its factorization.

47731672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5966465 (or 5966461 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 47731672 is about 6908.8111857251. The cubic root of 47731672 is about 362.7456522805.

The spelling of 47731672 in words is "forty-seven million, seven hundred thirty-one thousand, six hundred seventy-two".