722903 has 2 divisors, whose sum is σ = 722904. Its totient is φ = 722902.

The previous prime is 722899. The next prime is 722921. The reversal of 722903 is 309227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722903 - 2² = 722899 is a prime.

It is a super-3 number, since 3×722903³ = 1133342919804624981, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361451 + 361452.

It is an arithmetic number, because the mean of its divisors is an integer number (361452).

2⁷²²⁹⁰³ is an apocalyptic number.

722903 is a deficient number, since it is larger than the sum of its proper divisors (1).

722903 is an equidigital number, since it uses as much as digits as its factorization.

722903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 722903 is about 850.2370257758. The cubic root of 722903 is about 89.7483918986.

The spelling of 722903 in words is "seven hundred twenty-two thousand, nine hundred three".