47578892 has 24 divisors (see below), whose sum is σ = 86120160. Its totient is φ = 22982400.

The previous prime is 47578891. The next prime is 47578897. The reversal of 47578892 is 29887574.

It is a self number, because there is not a number n which added to its sum of digits gives 47578892.

It is not an unprimeable number, because it can be changed into a prime (47578891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21284 + ... + 23412.

It is an arithmetic number, because the mean of its divisors is an integer number (3588340).

Almost surely, 2^47578892 is an apocalyptic number.

It is an amenable number.

47578892 is a deficient number, since it is larger than the sum of its proper divisors (38541268).

47578892 is a wasteful number, since it uses less digits than its factorization.

47578892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321 (or 2319 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 47578892 is about 6897.7454287615. The cubic root of 47578892 is about 362.3582120078.

The spelling of 47578892 in words is "forty-seven million, five hundred seventy-eight thousand, eight hundred ninety-two".