47717992 has 32 divisors (see below), whose sum is σ = 105782400. Its totient is φ = 19744704.

The previous prime is 47717981. The next prime is 47717993. The reversal of 47717992 is 29971774.

It is not an unprimeable number, because it can be changed into a prime (47717993) 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, 13068 + ... + 16315.

It is an arithmetic number, because the mean of its divisors is an integer number (3305700).

Almost surely, 2^47717992 is an apocalyptic number.

It is an amenable number.

47717992 is an abundant number, since it is smaller than the sum of its proper divisors (58064408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47717992 is a wasteful number, since it uses less digits than its factorization.

47717992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29425 (or 29421 counting only the distinct ones).

The product of its digits is 222264, while the sum is 46.

The square root of 47717992 is about 6907.8210746950. The cubic root of 47717992 is about 362.7109944075.

The spelling of 47717992 in words is "forty-seven million, seven hundred seventeen thousand, nine hundred ninety-two".