716664587 has 2 divisors, whose sum is σ = 716664588. Its totient is φ = 716664586.

The previous prime is 716664551. The next prime is 716664593. The reversal of 716664587 is 785466617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 716664587 - 2⁶ = 716664523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (716663587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358332293 + 358332294.

It is an arithmetic number, because the mean of its divisors is an integer number (358332294).

Almost surely, 2^716664587 is an apocalyptic number.

716664587 is a deficient number, since it is larger than the sum of its proper divisors (1).

716664587 is an equidigital number, since it uses as much as digits as its factorization.

716664587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 50.

The square root of 716664587 is about 26770.5918313361. The cubic root of 716664587 is about 894.8947940796.

The spelling of 716664587 in words is "seven hundred sixteen million, six hundred sixty-four thousand, five hundred eighty-seven".