716016639 has 8 divisors (see below), whose sum is σ = 1028126512. Its totient is φ = 440625600.

The previous prime is 716016619. The next prime is 716016643. The reversal of 716016639 is 936610617.

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

It is not a de Polignac number, because 716016639 - 2⁹ = 716016127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 18359401 = 716016639 / (7 + 1 + 6 + 0 + 1 + 6 + 6 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 716016597 and 716016606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716016619) 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, 9179662 + ... + 9179739.

It is an arithmetic number, because the mean of its divisors is an integer number (128515814).

Almost surely, 2^716016639 is an apocalyptic number.

716016639 is a deficient number, since it is larger than the sum of its proper divisors (312109873).

716016639 is a wasteful number, since it uses less digits than its factorization.

716016639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18359417.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 716016639 is about 26758.4872330257. The cubic root of 716016639 is about 894.6250164925.

The spelling of 716016639 in words is "seven hundred sixteen million, sixteen thousand, six hundred thirty-nine".