47147992 has 16 divisors (see below), whose sum is σ = 88554600. Its totient is φ = 23533440.

The previous prime is 47147983. The next prime is 47148001. The reversal of 47147992 is 29974174.

It is an interprime number because it is at equal distance from previous prime (47147983) and next prime (47148001).

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, 192 + ... + 9712.

Almost surely, 2^47147992 is an apocalyptic number.

It is an amenable number.

47147992 is a deficient number, since it is larger than the sum of its proper divisors (41406608).

47147992 is a wasteful number, since it uses less digits than its factorization.

47147992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146 (or 10142 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 47147992 is about 6866.4395431694. The cubic root of 47147992 is about 361.2609894367.

The spelling of 47147992 in words is "forty-seven million, one hundred forty-seven thousand, nine hundred ninety-two".