720489259 has 16 divisors (see below), whose sum is σ = 852295680. Its totient is φ = 596011680.

The previous prime is 720489247. The next prime is 720489277. The reversal of 720489259 is 952984027.

It is a cyclic number.

It is not a de Polignac number, because 720489259 - 2⁵ = 720489227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720489229) 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 in 15 ways as a sum of consecutive naturals, for example, 78777 + ... + 87445.

It is an arithmetic number, because the mean of its divisors is an integer number (53268480).

Almost surely, 2^720489259 is an apocalyptic number.

720489259 is a deficient number, since it is larger than the sum of its proper divisors (131806421).

720489259 is a wasteful number, since it uses less digits than its factorization.

720489259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 720489259 is about 26841.9309849347. The cubic root of 720489259 is about 896.4839188630.

The spelling of 720489259 in words is "seven hundred twenty million, four hundred eighty-nine thousand, two hundred fifty-nine".