722902 has 4 divisors (see below), whose sum is σ = 1084356. Its totient is φ = 361450.

The previous prime is 722899. The next prime is 722903. The reversal of 722902 is 209227.

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

It is a super-3 number, since 3×722902³ = 1133338216512404424, which contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722903) 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 as a sum of consecutive naturals, namely, 180724 + ... + 180727.

It is an arithmetic number, because the mean of its divisors is an integer number (271089).

2⁷²²⁹⁰² is an apocalyptic number.

722902 is a deficient number, since it is larger than the sum of its proper divisors (361454).

722902 is a wasteful number, since it uses less digits than its factorization.

722902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361453.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 722902 is about 850.2364377042. The cubic root of 722902 is about 89.7483505153.

The spelling of 722902 in words is "seven hundred twenty-two thousand, nine hundred two".