716990231 has 2 divisors, whose sum is σ = 716990232. Its totient is φ = 716990230.

The previous prime is 716990203. The next prime is 716990273. The reversal of 716990231 is 132099617.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 716990231 - 2⁶ = 716990167 is a prime.

It is a super-2 number, since 2×716990231² = 1028149982698866722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716990291) 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 as a sum of consecutive naturals, namely, 358495115 + 358495116.

It is an arithmetic number, because the mean of its divisors is an integer number (358495116).

Almost surely, 2^716990231 is an apocalyptic number.

716990231 is a deficient number, since it is larger than the sum of its proper divisors (1).

716990231 is an equidigital number, since it uses as much as digits as its factorization.

716990231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 716990231 is about 26776.6732623752. The cubic root of 716990231 is about 895.0303167950.

The spelling of 716990231 in words is "seven hundred sixteen million, nine hundred ninety thousand, two hundred thirty-one".