47839689 has 12 divisors (see below), whose sum is σ = 69774016. Its totient is φ = 31582872.

The previous prime is 47839657. The next prime is 47839697. The reversal of 47839689 is 98693874.

47839689 is a `hidden beast` number, since 478 + 3 + 96 + 89 = 666.

It is not a de Polignac number, because 47839689 - 2⁵ = 47839657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47839639) 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, 24877 + ... + 26730.

Almost surely, 2^47839689 is an apocalyptic number.

It is an amenable number.

47839689 is a deficient number, since it is larger than the sum of its proper divisors (21934327).

47839689 is a wasteful number, since it uses less digits than its factorization.

47839689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51716 (or 51713 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 47839689 is about 6916.6241042867. The cubic root of 47839689 is about 363.0190778398.

The spelling of 47839689 in words is "forty-seven million, eight hundred thirty-nine thousand, six hundred eighty-nine".