47139588 has 36 divisors (see below), whose sum is σ = 119399280. Its totient is φ = 15681456.

The previous prime is 47139563. The next prime is 47139607. The reversal of 47139588 is 88593174.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22731 + ... + 24717.

Almost surely, 2^47139588 is an apocalyptic number.

It is an amenable number.

47139588 is an abundant number, since it is smaller than the sum of its proper divisors (72259692).

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

47139588 is a wasteful number, since it uses less digits than its factorization.

47139588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 2651 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 47139588 is about 6865.8275539078. The cubic root of 47139588 is about 361.2395235684.

The spelling of 47139588 in words is "forty-seven million, one hundred thirty-nine thousand, five hundred eighty-eight".