647196480 has 672 divisors, whose sum is σ = 2795869440. Its totient is φ = 139345920.

The previous prime is 647196469. The next prime is 647196493. The reversal of 647196480 is 84691746.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15785260 + ... + 15785300.

It is an arithmetic number, because the mean of its divisors is an integer number (4160520).

Almost surely, 2^647196480 is an apocalyptic number.

647196480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647196480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397934720).

647196480 is an abundant number, since it is smaller than the sum of its proper divisors (2148672960).

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

647196480 is a wasteful number, since it uses less digits than its factorization.

647196480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 647196480 is about 25440.0566037106. The cubic root of 647196480 is about 864.9919163489.

The spelling of 647196480 in words is "six hundred forty-seven million, one hundred ninety-six thousand, four hundred eighty".