720002 has 8 divisors (see below), whose sum is σ = 1087356. Its totient is φ = 357552.

The previous prime is 719989. The next prime is 720007. The reversal of 720002 is 200027.

720002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 32761 = 829^2 + 181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×720002³ = 1119753331225920024, which contains 333 as substring.

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

720002 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 3 ways as a sum of consecutive naturals, for example, 833 + ... + 1460.

2⁷²⁰⁰⁰² is an apocalyptic number.

720002 is a deficient number, since it is larger than the sum of its proper divisors (367354).

720002 is a wasteful number, since it uses less digits than its factorization.

720002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 28, while the sum is 11.

The square root of 720002 is about 848.5293159343. The cubic root of 720002 is about 89.6281779200.

Adding to 720002 its reverse (200027), we get a palindrome (920029).

The spelling of 720002 in words is "seven hundred twenty thousand, two", and thus it is an iban number.