47972164 has 24 divisors (see below), whose sum is σ = 89147520. Its totient is φ = 22509696.

The previous prime is 47972153. The next prime is 47972167. The reversal of 47972164 is 46127974.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47972167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29049 + ... + 30655.

It is an arithmetic number, because the mean of its divisors is an integer number (3714480).

Almost surely, 2^47972164 is an apocalyptic number.

It is an amenable number.

47972164 is a deficient number, since it is larger than the sum of its proper divisors (41175356).

47972164 is a wasteful number, since it uses less digits than its factorization.

47972164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2065 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 47972164 is about 6926.1940486821. The cubic root of 47972164 is about 363.3538530808.

The spelling of 47972164 in words is "forty-seven million, nine hundred seventy-two thousand, one hundred sixty-four".