47720764 has 24 divisors (see below), whose sum is σ = 102783968. Its totient is φ = 18878400.

The previous prime is 47720753. The next prime is 47720807. The reversal of 47720764 is 46702774.

It is a happy number.

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, 65187 + ... + 65914.

Almost surely, 2^47720764 is an apocalyptic number.

It is an amenable number.

47720764 is an abundant number, since it is smaller than the sum of its proper divisors (55063204).

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

47720764 is a wasteful number, since it uses less digits than its factorization.

47720764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131125 (or 131123 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 47720764 is about 6908.0217139207. The cubic root of 47720764 is about 362.7180177221.

It can be divided in two parts, 47720 and 764, that added together give a palindrome (48484).

The spelling of 47720764 in words is "forty-seven million, seven hundred twenty thousand, seven hundred sixty-four".