47731292 has 18 divisors (see below), whose sum is σ = 97167672. Its totient is φ = 20456184.

The previous prime is 47731261. The next prime is 47731301. The reversal of 47731292 is 29213774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121568 + ... + 121959.

It is an arithmetic number, because the mean of its divisors is an integer number (5398204).

Almost surely, 2^47731292 is an apocalyptic number.

It is an amenable number.

47731292 is an abundant number, since it is smaller than the sum of its proper divisors (49436380).

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

47731292 is a wasteful number, since it uses less digits than its factorization.

47731292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243545 (or 243536 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 47731292 is about 6908.7836845569. The cubic root of 47731292 is about 362.7446896512.

The spelling of 47731292 in words is "forty-seven million, seven hundred thirty-one thousand, two hundred ninety-two".