716861289 has 8 divisors (see below), whose sum is σ = 967331232. Its totient is φ = 472149440.

The previous prime is 716861231. The next prime is 716861291. The reversal of 716861289 is 982168617.

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

It is a cyclic number.

It is not a de Polignac number, because 716861289 - 2⁷ = 716861161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (716861989) 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, 1439232 + ... + 1439729.

It is an arithmetic number, because the mean of its divisors is an integer number (120916404).

Almost surely, 2^716861289 is an apocalyptic number.

It is an amenable number.

716861289 is a deficient number, since it is larger than the sum of its proper divisors (250469943).

716861289 is a wasteful number, since it uses less digits than its factorization.

716861289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879047.

The product of its digits is 290304, while the sum is 48.

The square root of 716861289 is about 26774.2654240971. The cubic root of 716861289 is about 894.9766601281.

The spelling of 716861289 in words is "seven hundred sixteen million, eight hundred sixty-one thousand, two hundred eighty-nine".