720086 has 8 divisors (see below), whose sum is σ = 1143720. Its totient is φ = 338848.

The previous prime is 720059. The next prime is 720089. The reversal of 720086 is 680027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720089) 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, 10556 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (142965).

2⁷²⁰⁰⁸⁶ is an apocalyptic number.

720086 is a deficient number, since it is larger than the sum of its proper divisors (423634).

720086 is a wasteful number, since it uses less digits than its factorization.

720086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21198.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 720086 is about 848.5788118967. The cubic root of 720086 is about 89.6316633151.

The spelling of 720086 in words is "seven hundred twenty thousand, eighty-six".