47088639 has 36 divisors (see below), whose sum is σ = 74738664. Its totient is φ = 28551744.

The previous prime is 47088637. The next prime is 47088647. The reversal of 47088639 is 93688074.

It is a happy number.

47088639 is a `hidden beast` number, since 4 + 7 + 0 + 8 + 8 + 639 = 666.

It is not a de Polignac number, because 47088639 - 2¹ = 47088637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47088594 and 47088603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47088637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 126057 + ... + 126429.

It is an arithmetic number, because the mean of its divisors is an integer number (2076074).

Almost surely, 2^47088639 is an apocalyptic number.

47088639 is a deficient number, since it is larger than the sum of its proper divisors (27650025).

47088639 is a wasteful number, since it uses less digits than its factorization.

47088639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 47088639 is about 6862.1162187768. The cubic root of 47088639 is about 361.1093327320.

The spelling of 47088639 in words is "forty-seven million, eighty-eight thousand, six hundred thirty-nine".