47189977 has 8 divisors (see below), whose sum is σ = 52596000. Its totient is φ = 42076224.

The previous prime is 47189941. The next prime is 47189983. The reversal of 47189977 is 77998174.

47189977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47189977 - 2²³ = 38801369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47189477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72727 + ... + 73372.

It is an arithmetic number, because the mean of its divisors is an integer number (6574500).

Almost surely, 2^47189977 is an apocalyptic number.

It is an amenable number.

47189977 is a deficient number, since it is larger than the sum of its proper divisors (5406023).

47189977 is a wasteful number, since it uses less digits than its factorization.

47189977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146135.

The product of its digits is 889056, while the sum is 52.

The square root of 47189977 is about 6869.4961241710. The cubic root of 47189977 is about 361.3681911932.

The spelling of 47189977 in words is "forty-seven million, one hundred eighty-nine thousand, nine hundred seventy-seven".