720724698 has 24 divisors (see below), whose sum is σ = 1562303808. Its totient is φ = 240128712.

The previous prime is 720724679. The next prime is 720724717. The reversal of 720724698 is 896427027.

It is an interprime number because it is at equal distance from previous prime (720724679) and next prime (720724717).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 35865 + ... + 52227.

It is an arithmetic number, because the mean of its divisors is an integer number (65095992).

Almost surely, 2^720724698 is an apocalyptic number.

720724698 is an abundant number, since it is smaller than the sum of its proper divisors (841579110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720724698 is a wasteful number, since it uses less digits than its factorization.

720724698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18818 (or 18815 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 720724698 is about 26846.3162836170. The cubic root of 720724698 is about 896.5815582047.

The spelling of 720724698 in words is "seven hundred twenty million, seven hundred twenty-four thousand, six hundred ninety-eight".