716870261 has 2 divisors, whose sum is σ = 716870262. Its totient is φ = 716870260.

The previous prime is 716870221. The next prime is 716870291. The reversal of 716870261 is 162078617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701932036 + 14938225 = 26494^2 + 3865^2 .

It is a cyclic number.

It is not a de Polignac number, because 716870261 - 2⁶ = 716870197 is a prime.

It is a super-2 number, since 2×716870261² = 1027805942212416242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716870221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358435130 + 358435131.

It is an arithmetic number, because the mean of its divisors is an integer number (358435131).

Almost surely, 2^716870261 is an apocalyptic number.

It is an amenable number.

716870261 is a deficient number, since it is larger than the sum of its proper divisors (1).

716870261 is an equidigital number, since it uses as much as digits as its factorization.

716870261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 716870261 is about 26774.4329725206. The cubic root of 716870261 is about 894.9803938570.

The spelling of 716870261 in words is "seven hundred sixteen million, eight hundred seventy thousand, two hundred sixty-one".