47139852 has 24 divisors (see below), whose sum is σ = 110110000. Its totient is φ = 15696576.

The previous prime is 47139847. The next prime is 47139863. The reversal of 47139852 is 25893174.

It is a self number, because there is not a number n which added to its sum of digits gives 47139852.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15774 + ... + 18522.

Almost surely, 2^47139852 is an apocalyptic number.

It is an amenable number.

47139852 is an abundant number, since it is smaller than the sum of its proper divisors (62970148).

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

47139852 is a wasteful number, since it uses less digits than its factorization.

47139852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185 (or 4183 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 47139852 is about 6865.8467795313. The cubic root of 47139852 is about 361.2401979277.

The spelling of 47139852 in words is "forty-seven million, one hundred thirty-nine thousand, eight hundred fifty-two".