716243591 has 4 divisors (see below), whose sum is σ = 818564112. Its totient is φ = 613923072.

The previous prime is 716243471. The next prime is 716243597. The reversal of 716243591 is 195342617.

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

It is not a de Polignac number, because 716243591 - 2¹⁰ = 716242567 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 (716243597) 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, 51160250 + ... + 51160263.

It is an arithmetic number, because the mean of its divisors is an integer number (204641028).

Almost surely, 2^716243591 is an apocalyptic number.

716243591 is a deficient number, since it is larger than the sum of its proper divisors (102320521).

716243591 is a wasteful number, since it uses less digits than its factorization.

716243591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102320520.

The product of its digits is 45360, while the sum is 38.

The square root of 716243591 is about 26762.7276449916. The cubic root of 716243591 is about 894.7195280246.

The spelling of 716243591 in words is "seven hundred sixteen million, two hundred forty-three thousand, five hundred ninety-one".