720698 has 32 divisors (see below), whose sum is σ = 1306368. Its totient is φ = 294400.

The previous prime is 720697. The next prime is 720703. The reversal of 720698 is 896027.

It is not an unprimeable number, because it can be changed into a prime (720697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15311 + ... + 15357.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁷²⁰⁶⁹⁸ is an apocalyptic number.

720698 is a deficient number, since it is larger than the sum of its proper divisors (585670).

720698 is a wasteful number, since it uses less digits than its factorization.

720698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 720698 is about 848.9393382333. The cubic root of 720698 is about 89.6570487297.

The spelling of 720698 in words is "seven hundred twenty thousand, six hundred ninety-eight".