47958139 has 16 divisors (see below), whose sum is σ = 52228800. Its totient is φ = 43868160.

The previous prime is 47958137. The next prime is 47958143. The reversal of 47958139 is 93185974.

It is a happy number.

It is not a de Polignac number, because 47958139 - 2¹ = 47958137 is a prime.

It is a Duffinian number.

Its product of digits (272160) is a multiple of the sum of its prime divisors (630).

It is not an unprimeable number, because it can be changed into a prime (47958137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106587 + ... + 107035.

It is an arithmetic number, because the mean of its divisors is an integer number (3264300).

Almost surely, 2^47958139 is an apocalyptic number.

47958139 is a deficient number, since it is larger than the sum of its proper divisors (4270661).

47958139 is a wasteful number, since it uses less digits than its factorization.

47958139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630.

The product of its digits is 272160, while the sum is 46.

The square root of 47958139 is about 6925.1815138666. The cubic root of 47958139 is about 363.3184399435.

The spelling of 47958139 in words is "forty-seven million, nine hundred fifty-eight thousand, one hundred thirty-nine".