47712756 has 72 divisors (see below), whose sum is σ = 137815104. Its totient is φ = 12579840.

The previous prime is 47712737. The next prime is 47712779. The reversal of 47712756 is 65721774.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12516 + ... + 15876.

Almost surely, 2^47712756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47712756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68907552).

47712756 is an abundant number, since it is smaller than the sum of its proper divisors (90102348).

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

47712756 is a wasteful number, since it uses less digits than its factorization.

47712756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401 (or 3386 counting only the distinct ones).

The product of its digits is 82320, while the sum is 39.

The square root of 47712756 is about 6907.4420735899. The cubic root of 47712756 is about 362.6977274045.

The spelling of 47712756 in words is "forty-seven million, seven hundred twelve thousand, seven hundred fifty-six".