47004139 has 12 divisors (see below), whose sum is σ = 58170576. Its totient is φ = 37189152.

The previous prime is 47004127. The next prime is 47004161. The reversal of 47004139 is 93140074.

47004139 = T₄₄₅ + T₄₄₆ + ... + T₇₁₇.

It is not a de Polignac number, because 47004139 - 2⁵ = 47004107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47004109) 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, 18684 + ... + 21049.

It is an arithmetic number, because the mean of its divisors is an integer number (4847548).

Almost surely, 2^47004139 is an apocalyptic number.

47004139 is a deficient number, since it is larger than the sum of its proper divisors (11166437).

47004139 is a wasteful number, since it uses less digits than its factorization.

47004139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39766 (or 39753 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 47004139 is about 6855.9564613553. The cubic root of 47004139 is about 360.8932012711.

The spelling of 47004139 in words is "forty-seven million, four thousand, one hundred thirty-nine".