47807982 has 20 divisors (see below), whose sum is σ = 107125656. Its totient is φ = 15935940.

The previous prime is 47807941. The next prime is 47807999. The reversal of 47807982 is 28970874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 147394 + ... + 147717.

Almost surely, 2^47807982 is an apocalyptic number.

47807982 is an abundant number, since it is smaller than the sum of its proper divisors (59317674).

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

47807982 is a wasteful number, since it uses less digits than its factorization.

47807982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295125 (or 295116 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 47807982 is about 6914.3316379821. The cubic root of 47807982 is about 362.9388599985.

The spelling of 47807982 in words is "forty-seven million, eight hundred seven thousand, nine hundred eighty-two".