720067 has 4 divisors (see below), whose sum is σ = 723520. Its totient is φ = 716616.

The previous prime is 720059. The next prime is 720089. The reversal of 720067 is 760027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 760027 = 31 ⋅24517.

It is a cyclic number.

It is not a de Polignac number, because 720067 - 2³ = 720059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392 + ... + 1837.

It is an arithmetic number, because the mean of its divisors is an integer number (180880).

2⁷²⁰⁰⁶⁷ is an apocalyptic number.

720067 is a deficient number, since it is larger than the sum of its proper divisors (3453).

720067 is a wasteful number, since it uses less digits than its factorization.

720067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3452.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 720067 is about 848.5676166341. The cubic root of 720067 is about 89.6308749756.

The spelling of 720067 in words is "seven hundred twenty thousand, sixty-seven".