716657047 has 4 divisors (see below), whose sum is σ = 721053880. Its totient is φ = 712260216.

The previous prime is 716656979. The next prime is 716657059. The reversal of 716657047 is 740756617.

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 716657047 - 2¹⁹ = 716132759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 716656994 and 716657012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716657087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2198172 + ... + 2198497.

It is an arithmetic number, because the mean of its divisors is an integer number (180263470).

Almost surely, 2^716657047 is an apocalyptic number.

716657047 is a deficient number, since it is larger than the sum of its proper divisors (4396833).

716657047 is a wasteful number, since it uses less digits than its factorization.

716657047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396832.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 716657047 is about 26770.4510047926. The cubic root of 716657047 is about 894.8916556842.

It can be divided in two parts, 7166570 and 47, that added together give a palindrome (7166617).

The spelling of 716657047 in words is "seven hundred sixteen million, six hundred fifty-seven thousand, forty-seven".