716641697 has 4 divisors (see below), whose sum is σ = 719615556. Its totient is φ = 713667840.

The previous prime is 716641693. The next prime is 716641699. The reversal of 716641697 is 796146617.

716641697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 503598481 + 213043216 = 22441^2 + 14596^2 .

It is a cyclic number.

It is not a de Polignac number, because 716641697 - 2² = 716641693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716641691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486568 + ... + 1487049.

It is an arithmetic number, because the mean of its divisors is an integer number (179903889).

Almost surely, 2^716641697 is an apocalyptic number.

It is an amenable number.

716641697 is a deficient number, since it is larger than the sum of its proper divisors (2973859).

716641697 is a wasteful number, since it uses less digits than its factorization.

716641697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973858.

The product of its digits is 381024, while the sum is 47.

The square root of 716641697 is about 26770.1643065559. The cubic root of 716641697 is about 894.8852664427.

The spelling of 716641697 in words is "seven hundred sixteen million, six hundred forty-one thousand, six hundred ninety-seven".