716591121 has 8 divisors (see below), whose sum is σ = 955934304. Its totient is φ = 477487680.

The previous prime is 716591107. The next prime is 716591147. The reversal of 716591121 is 121195617.

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

It is not a de Polignac number, because 716591121 - 2⁷ = 716590993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (716591101) 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, 52840 + ... + 65001.

It is an arithmetic number, because the mean of its divisors is an integer number (119491788).

Almost surely, 2^716591121 is an apocalyptic number.

It is an amenable number.

716591121 is a deficient number, since it is larger than the sum of its proper divisors (239343183).

716591121 is a wasteful number, since it uses less digits than its factorization.

716591121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119871.

The product of its digits is 3780, while the sum is 33.

The square root of 716591121 is about 26769.2196561648. The cubic root of 716591121 is about 894.8642141827.

The spelling of 716591121 in words is "seven hundred sixteen million, five hundred ninety-one thousand, one hundred twenty-one".