722773 has 4 divisors (see below), whose sum is σ = 732748. Its totient is φ = 712800.

The previous prime is 722749. The next prime is 722783. The reversal of 722773 is 377227.

722773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377227 = 233 ⋅1619.

It can be written as a sum of positive squares in 2 ways, for example, as 580644 + 142129 = 762^2 + 377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4878 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (183187).

2⁷²²⁷⁷³ is an apocalyptic number.

722773 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

722773 is a deficient number, since it is larger than the sum of its proper divisors (9975).

722773 is an equidigital number, since it uses as much as digits as its factorization.

722773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974.

The product of its digits is 4116, while the sum is 28.

The square root of 722773 is about 850.1605730684. The cubic root of 722773 is about 89.7430117437.

The spelling of 722773 in words is "seven hundred twenty-two thousand, seven hundred seventy-three", and thus it is an iban number.