710631997 has 2 divisors, whose sum is σ = 710631998. Its totient is φ = 710631996.

The previous prime is 710631937. The next prime is 710632033. The reversal of 710631997 is 799136017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702303001 + 8328996 = 26501^2 + 2886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-710631997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (710631907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355315998 + 355315999.

It is an arithmetic number, because the mean of its divisors is an integer number (355315999).

Almost surely, 2^710631997 is an apocalyptic number.

It is an amenable number.

710631997 is a deficient number, since it is larger than the sum of its proper divisors (1).

710631997 is an equidigital number, since it uses as much as digits as its factorization.

710631997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 710631997 is about 26657.6817634242. The cubic root of 710631997 is about 892.3767625063.

The spelling of 710631997 in words is "seven hundred ten million, six hundred thirty-one thousand, nine hundred ninety-seven".