647359480 has 32 divisors (see below), whose sum is σ = 1458699840. Its totient is φ = 258563200.

The previous prime is 647359477. The next prime is 647359483. The reversal of 647359480 is 84953746.

It is an interprime number because it is at equal distance from previous prime (647359477) and next prime (647359483).

It is a self number, because there is not a number n which added to its sum of digits gives 647359480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647359483) 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, 16497 + ... + 39583.

It is an arithmetic number, because the mean of its divisors is an integer number (45584370).

Almost surely, 2^647359480 is an apocalyptic number.

It is an amenable number.

647359480 is an abundant number, since it is smaller than the sum of its proper divisors (811340360).

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

647359480 is a wasteful number, since it uses less digits than its factorization.

647359480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23799 (or 23795 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 647359480 is about 25443.2600112486. The cubic root of 647359480 is about 865.0645279136.

The spelling of 647359480 in words is "six hundred forty-seven million, three hundred fifty-nine thousand, four hundred eighty".