47989916 has 18 divisors (see below), whose sum is σ = 90940752. Its totient is φ = 22148880.

The previous prime is 47989883. The next prime is 47989939. The reversal of 47989916 is 61998974.

It is a happy number.

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, 34820 + ... + 36171.

It is an arithmetic number, because the mean of its divisors is an integer number (5052264).

Almost surely, 2^47989916 is an apocalyptic number.

It is an amenable number.

47989916 is a deficient number, since it is larger than the sum of its proper divisors (42950836).

47989916 is a wasteful number, since it uses less digits than its factorization.

47989916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71021 (or 71006 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 47989916 is about 6927.4754420351. The cubic root of 47989916 is about 363.3986670006.

The spelling of 47989916 in words is "forty-seven million, nine hundred eighty-nine thousand, nine hundred sixteen".