47221936 has 10 divisors (see below), whose sum is σ = 91492532. Its totient is φ = 23610960.

The previous prime is 47221919. The next prime is 47221939. The reversal of 47221936 is 63912274.

It is a super-2 number, since 2×47221936² = 4459822479176192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47221939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1475670 + ... + 1475701.

Almost surely, 2^47221936 is an apocalyptic number.

It is an amenable number.

47221936 is a deficient number, since it is larger than the sum of its proper divisors (44270596).

47221936 is a wasteful number, since it uses less digits than its factorization.

47221936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951379 (or 2951373 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 47221936 is about 6871.8218836055. The cubic root of 47221936 is about 361.4497506018.

The spelling of 47221936 in words is "forty-seven million, two hundred twenty-one thousand, nine hundred thirty-six".