720696 has 16 divisors (see below), whose sum is σ = 1801800. Its totient is φ = 240224.

The previous prime is 720683. The next prime is 720697. The reversal of 720696 is 696027.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14991 + ... + 15038.

2⁷²⁰⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

720696 is an abundant number, since it is smaller than the sum of its proper divisors (1081104).

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

720696 is a wasteful number, since it uses less digits than its factorization.

720696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30038 (or 30034 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 720696 is about 848.9381602920. The cubic root of 720696 is about 89.6569657942.

The spelling of 720696 in words is "seven hundred twenty thousand, six hundred ninety-six".