716397999 has 4 divisors (see below), whose sum is σ = 955197336. Its totient is φ = 477598664.

The previous prime is 716397989. The next prime is 716398019. The reversal of 716397999 is 999793617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 716397999 - 2¹⁵ = 716365231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716397989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119399664 + ... + 119399669.

It is an arithmetic number, because the mean of its divisors is an integer number (238799334).

Almost surely, 2^716397999 is an apocalyptic number.

716397999 is a deficient number, since it is larger than the sum of its proper divisors (238799337).

716397999 is a wasteful number, since it uses less digits than its factorization.

716397999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238799336.

The product of its digits is 5786802, while the sum is 60.

The square root of 716397999 is about 26765.6122478078. The cubic root of 716397999 is about 894.7838180363.

The spelling of 716397999 in words is "seven hundred sixteen million, three hundred ninety-seven thousand, nine hundred ninety-nine".