647672052 has 24 divisors (see below), whose sum is σ = 1600131456. Its totient is φ = 203191168.

The previous prime is 647672041. The next prime is 647672059. The reversal of 647672052 is 250276746.

It is a happy number.

647672052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 647672052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647672059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587228 + ... + 1587635.

It is an arithmetic number, because the mean of its divisors is an integer number (66672144).

Almost surely, 2^647672052 is an apocalyptic number.

It is an amenable number.

647672052 is an abundant number, since it is smaller than the sum of its proper divisors (952459404).

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

647672052 is a wasteful number, since it uses less digits than its factorization.

647672052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174887 (or 3174885 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 647672052 is about 25449.4018004353. The cubic root of 647672052 is about 865.2037351858.

The spelling of 647672052 in words is "six hundred forty-seven million, six hundred seventy-two thousand, fifty-two".