720069 has 16 divisors (see below), whose sum is σ = 1162368. Its totient is φ = 387072.

The previous prime is 720059. The next prime is 720089. The reversal of 720069 is 960027.

It is not a de Polignac number, because 720069 - 2⁴ = 720053 is a prime.

It is a super-2 number, since 2×720069² = 1036998729522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720019) 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, 652 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (72648).

2⁷²⁰⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

720069 is a deficient number, since it is larger than the sum of its proper divisors (442299).

720069 is a wasteful number, since it uses less digits than its factorization.

720069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 720069 is about 848.5687950897. The cubic root of 720069 is about 89.6309579594.

The spelling of 720069 in words is "seven hundred twenty thousand, sixty-nine".