47976939 has 12 divisors (see below), whose sum is σ = 69360096. Its totient is φ = 31956912.

The previous prime is 47976923. The next prime is 47976961. The reversal of 47976939 is 93967974.

It is not a de Polignac number, because 47976939 - 2⁴ = 47976923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47976979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18942 + ... + 21324.

It is an arithmetic number, because the mean of its divisors is an integer number (5780008).

Almost surely, 2^47976939 is an apocalyptic number.

47976939 is a deficient number, since it is larger than the sum of its proper divisors (21383157).

47976939 is a wasteful number, since it uses less digits than its factorization.

47976939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4623 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 47976939 is about 6926.5387460116. The cubic root of 47976939 is about 363.3659083850.

The spelling of 47976939 in words is "forty-seven million, nine hundred seventy-six thousand, nine hundred thirty-nine".