722413 has 4 divisors (see below), whose sum is σ = 730620. Its totient is φ = 714208.

The previous prime is 722411. The next prime is 722417. The reversal of 722413 is 314227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 412164 + 310249 = 642^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 722413 - 2¹ = 722411 is a prime.

It is a Duffinian number.

722413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722411) 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 in 3 ways as a sum of consecutive naturals, for example, 3970 + ... + 4147.

It is an arithmetic number, because the mean of its divisors is an integer number (182655).

2⁷²²⁴¹³ is an apocalyptic number.

It is an amenable number.

722413 is a deficient number, since it is larger than the sum of its proper divisors (8207).

722413 is an equidigital number, since it uses as much as digits as its factorization.

722413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8206.

The product of its digits is 336, while the sum is 19.

The square root of 722413 is about 849.9488219887. The cubic root of 722413 is about 89.7281094855.

It can be divided in two parts, 72 and 2413, that added together give a triangular number (2485 = T₇₀).

The spelling of 722413 in words is "seven hundred twenty-two thousand, four hundred thirteen".