722002 has 4 divisors (see below), whose sum is σ = 1083006. Its totient is φ = 361000.

The previous prime is 721997. The next prime is 722011. The reversal of 722002 is 200227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 47961 = 821^2 + 219^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 180499 + ... + 180502.

2⁷²²⁰⁰² is an apocalyptic number.

722002 is a deficient number, since it is larger than the sum of its proper divisors (361004).

722002 is a wasteful number, since it uses less digits than its factorization.

722002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361003.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 722002 is about 849.7070083270. The cubic root of 722002 is about 89.7110900202.

Adding to 722002 its reverse (200227), we get a palindrome (922229).

It can be divided in two parts, 72200 and 2, that multiplied together give a square (144400 = 380²).

The spelling of 722002 in words is "seven hundred twenty-two thousand, two", and thus it is an iban number.