47721392 has 10 divisors (see below), whose sum is σ = 92460228. Its totient is φ = 23860688.

The previous prime is 47721371. The next prime is 47721409. The reversal of 47721392 is 29312774.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491278 + ... + 1491309.

Almost surely, 2^47721392 is an apocalyptic number.

It is an amenable number.

47721392 is a deficient number, since it is larger than the sum of its proper divisors (44738836).

47721392 is a wasteful number, since it uses less digits than its factorization.

47721392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982595 (or 2982589 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 47721392 is about 6908.0671681737. The cubic root of 47721392 is about 362.7196088248.

The spelling of 47721392 in words is "forty-seven million, seven hundred twenty-one thousand, three hundred ninety-two".