723722 has 8 divisors (see below), whose sum is σ = 1100676. Its totient is φ = 356832.

The previous prime is 723721. The next prime is 723727. The reversal of 723722 is 227327.

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 36481 = 829^2 + 191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (723721) 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, 2333 + ... + 2624.

2⁷²³⁷²² is an apocalyptic number.

723722 is a deficient number, since it is larger than the sum of its proper divisors (376954).

723722 is a wasteful number, since it uses less digits than its factorization.

723722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032.

The product of its digits is 1176, while the sum is 23.

The square root of 723722 is about 850.7185198407. The cubic root of 723722 is about 89.7822720513.

The spelling of 723722 in words is "seven hundred twenty-three thousand, seven hundred twenty-two", and thus it is an iban number.