720078 has 16 divisors (see below), whose sum is σ = 1474176. Its totient is φ = 234360.

The previous prime is 720059. The next prime is 720089. The reversal of 720078 is 870027.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1138 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (92136).

2⁷²⁰⁰⁷⁸ is an apocalyptic number.

720078 is an abundant number, since it is smaller than the sum of its proper divisors (754098).

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

720078 is a wasteful number, since it uses less digits than its factorization.

720078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 720078 is about 848.5740981199. The cubic root of 720078 is about 89.6313313844.

The spelling of 720078 in words is "seven hundred twenty thousand, seventy-eight".