720605598 has 32 divisors (see below), whose sum is σ = 1478490624. Its totient is φ = 234034752.

The previous prime is 720605597. The next prime is 720605603. The reversal of 720605598 is 895506027.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720605593) 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, 58386 + ... + 69642.

It is an arithmetic number, because the mean of its divisors is an integer number (46202832).

Almost surely, 2^720605598 is an apocalyptic number.

720605598 is an abundant number, since it is smaller than the sum of its proper divisors (757885026).

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

720605598 is a wasteful number, since it uses less digits than its factorization.

720605598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 720605598 is about 26844.0980105497. The cubic root of 720605598 is about 896.5321686822.

The spelling of 720605598 in words is "seven hundred twenty million, six hundred five thousand, five hundred ninety-eight".