47087732 has 12 divisors (see below), whose sum is σ = 82698756. Its totient is φ = 23459520.

The previous prime is 47087707. The next prime is 47087743. The reversal of 47087732 is 23778074.

It can be written as a sum of positive squares in 2 ways, for example, as 37625956 + 9461776 = 6134^2 + 3076^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19823 + ... + 22070.

It is an arithmetic number, because the mean of its divisors is an integer number (6891563).

Almost surely, 2^47087732 is an apocalyptic number.

It is an amenable number.

47087732 is a deficient number, since it is larger than the sum of its proper divisors (35611024).

47087732 is a wasteful number, since it uses less digits than its factorization.

47087732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42178 (or 42176 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 47087732 is about 6862.0501309740. The cubic root of 47087732 is about 361.1070142091.

The spelling of 47087732 in words is "forty-seven million, eighty-seven thousand, seven hundred thirty-two".