47621768 has 8 divisors (see below), whose sum is σ = 89290830. Its totient is φ = 23810880.

The previous prime is 47621767. The next prime is 47621779. The reversal of 47621768 is 86712674.

It can be written as a sum of positive squares in only one way, i.e., 32239684 + 15382084 = 5678^2 + 3922^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (47621767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2976353 + ... + 2976368.

Almost surely, 2^47621768 is an apocalyptic number.

It is an amenable number.

47621768 is a deficient number, since it is larger than the sum of its proper divisors (41669062).

47621768 is a wasteful number, since it uses less digits than its factorization.

47621768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952727 (or 5952723 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 47621768 is about 6900.8527009349. The cubic root of 47621768 is about 362.4670264102.

The spelling of 47621768 in words is "forty-seven million, six hundred twenty-one thousand, seven hundred sixty-eight".