47443988 has 24 divisors (see below), whose sum is σ = 87864000. Its totient is φ = 22353408.

The previous prime is 47443943. The next prime is 47443993. The reversal of 47443988 is 88934474.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13556 + ... + 16692.

It is an arithmetic number, because the mean of its divisors is an integer number (3661000).

Almost surely, 2^47443988 is an apocalyptic number.

It is an amenable number.

47443988 is a deficient number, since it is larger than the sum of its proper divisors (40420012).

47443988 is a wasteful number, since it uses less digits than its factorization.

47443988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3359 (or 3357 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 47443988 is about 6887.9596398353. The cubic root of 47443988 is about 362.0154140135.

The spelling of 47443988 in words is "forty-seven million, four hundred forty-three thousand, nine hundred eighty-eight".