723006 has 20 divisors (see below), whose sum is σ = 1620432. Its totient is φ = 240948.

The previous prime is 722983. The next prime is 723029. The reversal of 723006 is 600327.

It is an interprime number because it is at equal distance from previous prime (722983) and next prime (723029).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 723006.

It is a congruent number.

It is an unprimeable number.

723006 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2070 + ... + 2393.

2⁷²³⁰⁰⁶ is an apocalyptic number.

723006 is an abundant number, since it is smaller than the sum of its proper divisors (897426).

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

723006 is a wasteful number, since it uses less digits than its factorization.

723006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4468 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 723006 is about 850.2975949631. The cubic root of 723006 is about 89.7526541788.

The spelling of 723006 in words is "seven hundred twenty-three thousand, six".