47128528 has 20 divisors (see below), whose sum is σ = 93780580. Its totient is φ = 22927104.

The previous prime is 47128483. The next prime is 47128547. The reversal of 47128528 is 82582174.

It can be written as a sum of positive squares in 2 ways, for example, as 38787984 + 8340544 = 6228^2 + 2888^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39213 + ... + 40396.

It is an arithmetic number, because the mean of its divisors is an integer number (4689029).

Almost surely, 2^47128528 is an apocalyptic number.

It is an amenable number.

47128528 is a deficient number, since it is larger than the sum of its proper divisors (46652052).

47128528 is a wasteful number, since it uses less digits than its factorization.

47128528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79654 (or 79648 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 47128528 is about 6865.0220684277. The cubic root of 47128528 is about 361.2112697390.

The spelling of 47128528 in words is "forty-seven million, one hundred twenty-eight thousand, five hundred twenty-eight".