716977 has 4 divisors (see below), whose sum is σ = 719140. Its totient is φ = 714816.

The previous prime is 716959. The next prime is 716981. The reversal of 716977 is 779617.

716977 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 312481 + 404496 = 559^2 + 636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716917) 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, 468 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (179785).

2⁷¹⁶⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

716977 is a deficient number, since it is larger than the sum of its proper divisors (2163).

716977 is a wasteful number, since it uses less digits than its factorization.

716977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162.

The product of its digits is 18522, while the sum is 37.

The square root of 716977 is about 846.7449438881. The cubic root of 716977 is about 89.5024811272.

The spelling of 716977 in words is "seven hundred sixteen thousand, nine hundred seventy-seven".