47788464 has 20 divisors (see below), whose sum is σ = 123453656. Its totient is φ = 15929472.

The previous prime is 47788463. The next prime is 47788469. The reversal of 47788464 is 46488774.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 995593 = 47788464 / (4 + 7 + 7 + 8 + 8 + 4 + 6 + 4).

It is not an unprimeable number, because it can be changed into a prime (47788463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497749 + ... + 497844.

Almost surely, 2^47788464 is an apocalyptic number.

It is an amenable number.

47788464 is an abundant number, since it is smaller than the sum of its proper divisors (75665192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47788464 is a wasteful number, since it uses less digits than its factorization.

47788464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995604 (or 995598 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The square root of 47788464 is about 6912.9200776517. The cubic root of 47788464 is about 362.8894623554.

The spelling of 47788464 in words is "forty-seven million, seven hundred eighty-eight thousand, four hundred sixty-four".