722479 has 2 divisors, whose sum is σ = 722480. Its totient is φ = 722478.

The previous prime is 722467. The next prime is 722489. The reversal of 722479 is 974227.

It is a happy number.

722479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722479 - 2¹⁷ = 591407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361239 + 361240.

It is an arithmetic number, because the mean of its divisors is an integer number (361240).

2⁷²²⁴⁷⁹ is an apocalyptic number.

722479 is a deficient number, since it is larger than the sum of its proper divisors (1).

722479 is an equidigital number, since it uses as much as digits as its factorization.

722479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 31.

The square root of 722479 is about 849.9876469691. The cubic root of 722479 is about 89.7308419367.

The spelling of 722479 in words is "seven hundred twenty-two thousand, four hundred seventy-nine".