47909892 has 24 divisors (see below), whose sum is σ = 112837536. Its totient is φ = 15820288.

The previous prime is 47909881. The next prime is 47909899. The reversal of 47909892 is 29890974.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47909899) 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, 17373 + ... + 19940.

It is an arithmetic number, because the mean of its divisors is an integer number (4701564).

Almost surely, 2^47909892 is an apocalyptic number.

It is an amenable number.

47909892 is an abundant number, since it is smaller than the sum of its proper divisors (64927644).

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

47909892 is a wasteful number, since it uses less digits than its factorization.

47909892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37427 (or 37425 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 47909892 is about 6921.6971907185. The cubic root of 47909892 is about 363.1965634722.

The spelling of 47909892 in words is "forty-seven million, nine hundred nine thousand, eight hundred ninety-two".