716321077 has 8 divisors (see below), whose sum is σ = 728184600. Its totient is φ = 704553984.

The previous prime is 716321069. The next prime is 716321087. The reversal of 716321077 is 770123617.

It can be written as a sum of positive squares in 4 ways, for example, as 280931121 + 435389956 = 16761^2 + 20866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 716321077 - 2³ = 716321069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716321017) 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, 9052 + ... + 38917.

It is an arithmetic number, because the mean of its divisors is an integer number (91023075).

Almost surely, 2^716321077 is an apocalyptic number.

It is an amenable number.

716321077 is a deficient number, since it is larger than the sum of its proper divisors (11863523).

716321077 is a wasteful number, since it uses less digits than its factorization.

716321077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48215.

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 716321077 is about 26764.1752534988. The cubic root of 716321077 is about 894.7517916001.

The spelling of 716321077 in words is "seven hundred sixteen million, three hundred twenty-one thousand, seventy-seven".