720006 has 48 divisors (see below), whose sum is σ = 1751040. Its totient is φ = 196560.

The previous prime is 719989. The next prime is 720007. The reversal of 720006 is 600027.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9075 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (36480).

2⁷²⁰⁰⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875520).

720006 is an abundant number, since it is smaller than the sum of its proper divisors (1031034).

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

720006 is a wasteful number, since it uses less digits than its factorization.

720006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 720006 is about 848.5316729504. The cubic root of 720006 is about 89.6283438974.

The spelling of 720006 in words is "seven hundred twenty thousand, six".