47977146 has 48 divisors (see below), whose sum is σ = 119193984. Its totient is φ = 13662432.

The previous prime is 47977129. The next prime is 47977157. The reversal of 47977146 is 64177974.

47977146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 23 ways as a sum of consecutive naturals, for example, 63000 + ... + 63756.

It is an arithmetic number, because the mean of its divisors is an integer number (2483208).

Almost surely, 2^47977146 is an apocalyptic number.

47977146 is an abundant number, since it is smaller than the sum of its proper divisors (71216838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47977146 is a wasteful number, since it uses less digits than its factorization.

47977146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1272 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 47977146 is about 6926.5536885236. The cubic root of 47977146 is about 363.3664309738.

The spelling of 47977146 in words is "forty-seven million, nine hundred seventy-seven thousand, one hundred forty-six".