724322 has 4 divisors (see below), whose sum is σ = 1086486. Its totient is φ = 362160.

The previous prime is 724313. The next prime is 724331. The reversal of 724322 is 223427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223427 = 373 ⋅599.

It is an interprime number because it is at equal distance from previous prime (724313) and next prime (724331).

It can be written as a sum of positive squares in only one way, i.e., 724201 + 121 = 851^2 + 11^2 .

It is a junction number, because it is equal to n+sod(n) for n = 724294 and 724303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181079 + ... + 181082.

2⁷²⁴³²² is an apocalyptic number.

724322 is a deficient number, since it is larger than the sum of its proper divisors (362164).

724322 is a wasteful number, since it uses less digits than its factorization.

724322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362163.

The product of its digits is 672, while the sum is 20.

The square root of 724322 is about 851.0710898627. The cubic root of 724322 is about 89.8070764575.

Adding to 724322 its reverse (223427), we get a palindrome (947749).

The spelling of 724322 in words is "seven hundred twenty-four thousand, three hundred twenty-two", and thus it is an iban number.