716398019 has 2 divisors, whose sum is σ = 716398020. Its totient is φ = 716398018.

The previous prime is 716397989. The next prime is 716398057. The reversal of 716398019 is 910893617.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 716398019 - 2⁸ = 716397763 is a prime.

It is a super-2 number, since 2×716398019² = 1026452243254248722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (716398069) 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, 358199009 + 358199010.

It is an arithmetic number, because the mean of its divisors is an integer number (358199010).

Almost surely, 2^716398019 is an apocalyptic number.

716398019 is a deficient number, since it is larger than the sum of its proper divisors (1).

716398019 is an equidigital number, since it uses as much as digits as its factorization.

716398019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 716398019 is about 26765.6126214215. The cubic root of 716398019 is about 894.7838263630.

The spelling of 716398019 in words is "seven hundred sixteen million, three hundred ninety-eight thousand, nineteen".