716666767 has 4 divisors (see below), whose sum is σ = 733333480. Its totient is φ = 700000056.

The previous prime is 716666747. The next prime is 716666771. The reversal of 716666767 is 767666617.

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

It is a cyclic number.

It is not a de Polignac number, because 716666767 - 2¹¹ = 716664719 is a prime.

It is a super-2 number, since 2×716666767² = 1027222509844464578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716666747) 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, 8333292 + ... + 8333377.

It is an arithmetic number, because the mean of its divisors is an integer number (183333370).

Almost surely, 2^716666767 is an apocalyptic number.

716666767 is a deficient number, since it is larger than the sum of its proper divisors (16666713).

716666767 is a wasteful number, since it uses less digits than its factorization.

716666767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16666712.

The product of its digits is 2667168, while the sum is 52.

The square root of 716666767 is about 26770.6325476258. The cubic root of 716666767 is about 894.8957014630.

The spelling of 716666767 in words is "seven hundred sixteen million, six hundred sixty-six thousand, seven hundred sixty-seven".