723020 has 12 divisors (see below), whose sum is σ = 1518384. Its totient is φ = 289200.

The previous prime is 722983. The next prime is 723029. The reversal of 723020 is 20327.

It is a junction number, because it is equal to n+sod(n) for n = 722986 and 723004.

It is not an unprimeable number, because it can be changed into a prime (723029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18056 + ... + 18095.

It is an arithmetic number, because the mean of its divisors is an integer number (126532).

2⁷²³⁰²⁰ is an apocalyptic number.

It is an amenable number.

723020 is an abundant number, since it is smaller than the sum of its proper divisors (795364).

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

723020 is a wasteful number, since it uses less digits than its factorization.

723020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36160 (or 36158 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 723020 is about 850.3058273351. The cubic root of 723020 is about 89.7532334866.

Adding to 723020 its reverse (20327), we get a palindrome (743347).

The spelling of 723020 in words is "seven hundred twenty-three thousand, twenty", and thus it is an iban number.