716637647 has 32 divisors (see below), whose sum is σ = 836136000. Its totient is φ = 608025600.

The previous prime is 716637631. The next prime is 716637653. The reversal of 716637647 is 746736617.

It is not a de Polignac number, because 716637647 - 2⁴ = 716637631 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716637667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2053229 + ... + 2053577.

It is an arithmetic number, because the mean of its divisors is an integer number (26129250).

Almost surely, 2^716637647 is an apocalyptic number.

716637647 is a deficient number, since it is larger than the sum of its proper divisors (119498353).

716637647 is a wasteful number, since it uses less digits than its factorization.

716637647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its digits is 889056, while the sum is 47.

The square root of 716637647 is about 26770.0886625353. The cubic root of 716637647 is about 894.8835806667.

The spelling of 716637647 in words is "seven hundred sixteen million, six hundred thirty-seven thousand, six hundred forty-seven".