716642567 has 4 divisors (see below), whose sum is σ = 734121696. Its totient is φ = 699163440.

The previous prime is 716642557. The next prime is 716642573. The reversal of 716642567 is 765246617.

716642567 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 is a cyclic number.

It is not a de Polignac number, because 716642567 - 2¹⁶ = 716577031 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 (716642557) 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, 8739503 + ... + 8739584.

It is an arithmetic number, because the mean of its divisors is an integer number (183530424).

Almost surely, 2^716642567 is an apocalyptic number.

716642567 is a deficient number, since it is larger than the sum of its proper divisors (17479129).

716642567 is a wasteful number, since it uses less digits than its factorization.

716642567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17479128.

The product of its digits is 423360, while the sum is 44.

The square root of 716642567 is about 26770.1805559843. The cubic root of 716642567 is about 894.8856285715.

The spelling of 716642567 in words is "seven hundred sixteen million, six hundred forty-two thousand, five hundred sixty-seven".