716505859 has 2 divisors, whose sum is σ = 716505860. Its totient is φ = 716505858.

The previous prime is 716505809. The next prime is 716505863. The reversal of 716505859 is 958505617.

It is a strong prime.

It is an emirp because it is prime and its reverse (958505617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 716505859 - 2⁹ = 716505347 is a prime.

It is not a weakly prime, because it can be changed into another prime (716505809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358252929 + 358252930.

It is an arithmetic number, because the mean of its divisors is an integer number (358252930).

Almost surely, 2^716505859 is an apocalyptic number.

716505859 is a deficient number, since it is larger than the sum of its proper divisors (1).

716505859 is an equidigital number, since it uses as much as digits as its factorization.

716505859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 46.

The square root of 716505859 is about 26767.6270707734. The cubic root of 716505859 is about 894.8287216325.

The spelling of 716505859 in words is "seven hundred sixteen million, five hundred five thousand, eight hundred fifty-nine".