47657432 has 8 divisors (see below), whose sum is σ = 89357700. Its totient is φ = 23828712.

The previous prime is 47657431. The next prime is 47657473. The reversal of 47657432 is 23475674.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47657431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2978582 + ... + 2978597.

Almost surely, 2^47657432 is an apocalyptic number.

It is an amenable number.

47657432 is a deficient number, since it is larger than the sum of its proper divisors (41700268).

47657432 is a wasteful number, since it uses less digits than its factorization.

47657432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957185 (or 5957181 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 47657432 is about 6903.4362458127. The cubic root of 47657432 is about 362.5574878308.

The spelling of 47657432 in words is "forty-seven million, six hundred fifty-seven thousand, four hundred thirty-two".