47995947 has 12 divisors (see below), whose sum is σ = 73405800. Its totient is φ = 30115008.

The previous prime is 47995943. The next prime is 47995973. The reversal of 47995947 is 74959974.

47995947 is a `hidden beast` number, since 47 + 9 + 9 + 594 + 7 = 666.

It is not a de Polignac number, because 47995947 - 2² = 47995943 is a prime.

It is a super-2 number, since 2×47995947² = 4607221856853618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47995893 and 47995902.

It is not an unprimeable number, because it can be changed into a prime (47995943) 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, 156697 + ... + 157002.

It is an arithmetic number, because the mean of its divisors is an integer number (6117150).

Almost surely, 2^47995947 is an apocalyptic number.

47995947 is a deficient number, since it is larger than the sum of its proper divisors (25409853).

47995947 is a wasteful number, since it uses less digits than its factorization.

47995947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313722 (or 313719 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 47995947 is about 6927.9107240206. The cubic root of 47995947 is about 363.4138894038.

The spelling of 47995947 in words is "forty-seven million, nine hundred ninety-five thousand, nine hundred forty-seven".