47989356 has 12 divisors (see below), whose sum is σ = 111975192. Its totient is φ = 15996448.

The previous prime is 47989313. The next prime is 47989367. The reversal of 47989356 is 65398974.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 47989299 and 47989308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1999545 + ... + 1999568.

It is an arithmetic number, because the mean of its divisors is an integer number (9331266).

Almost surely, 2^47989356 is an apocalyptic number.

It is an amenable number.

47989356 is an abundant number, since it is smaller than the sum of its proper divisors (63985836).

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

47989356 is a wasteful number, since it uses less digits than its factorization.

47989356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999120 (or 3999118 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 47989356 is about 6927.4350231525. The cubic root of 47989356 is about 363.3972534811.

The spelling of 47989356 in words is "forty-seven million, nine hundred eighty-nine thousand, three hundred fifty-six".