47720392 has 32 divisors (see below), whose sum is σ = 92960280. Its totient is φ = 22947840.

The previous prime is 47720363. The next prime is 47720401. The reversal of 47720392 is 29302774.

It can be written as a sum of positive squares in 4 ways, for example, as 35928036 + 11792356 = 5994^2 + 3434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22948 + ... + 24940.

Almost surely, 2^47720392 is an apocalyptic number.

It is an amenable number.

47720392 is a deficient number, since it is larger than the sum of its proper divisors (45239888).

47720392 is a wasteful number, since it uses less digits than its factorization.

47720392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 47720392 is about 6907.9947886489. The cubic root of 47720392 is about 362.7170752152.

The spelling of 47720392 in words is "forty-seven million, seven hundred twenty thousand, three hundred ninety-two".