718720459 has 2 divisors, whose sum is σ = 718720460. Its totient is φ = 718720458.

The previous prime is 718720417. The next prime is 718720481. The reversal of 718720459 is 954027817.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 718720459 - 2¹¹ = 718718411 is a prime.

It is not a weakly prime, because it can be changed into another prime (718720759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359360229 + 359360230.

It is an arithmetic number, because the mean of its divisors is an integer number (359360230).

Almost surely, 2^718720459 is an apocalyptic number.

718720459 is a deficient number, since it is larger than the sum of its proper divisors (1).

718720459 is an equidigital number, since it uses as much as digits as its factorization.

718720459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 718720459 is about 26808.9622887571. The cubic root of 718720459 is about 895.7496954911.

The spelling of 718720459 in words is "seven hundred eighteen million, seven hundred twenty thousand, four hundred fifty-nine".