716806997 has 2 divisors, whose sum is σ = 716806998. Its totient is φ = 716806996.

The previous prime is 716806969. The next prime is 716807081. The reversal of 716806997 is 799608617.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360012676 + 356794321 = 18974^2 + 18889^2 .

It is a cyclic number.

It is not a de Polignac number, because 716806997 - 2⁶ = 716806933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716806697) 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, 358403498 + 358403499.

It is an arithmetic number, because the mean of its divisors is an integer number (358403499).

Almost surely, 2^716806997 is an apocalyptic number.

It is an amenable number.

716806997 is a deficient number, since it is larger than the sum of its proper divisors (1).

716806997 is an equidigital number, since it uses as much as digits as its factorization.

716806997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 716806997 is about 26773.2515208743. The cubic root of 716806997 is about 894.9540656596.

The spelling of 716806997 in words is "seven hundred sixteen million, eight hundred six thousand, nine hundred ninety-seven".