722393 has 8 divisors (see below), whose sum is σ = 852480. Its totient is φ = 599040.

The previous prime is 722389. The next prime is 722411. The reversal of 722393 is 393227.

722393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 722393 - 2² = 722389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (722333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (106560).

2⁷²²³⁹³ is an apocalyptic number.

It is an amenable number.

722393 is a deficient number, since it is larger than the sum of its proper divisors (130087).

722393 is a wasteful number, since it uses less digits than its factorization.

722393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367.

The product of its digits is 2268, while the sum is 26.

The square root of 722393 is about 849.9370564930. The cubic root of 722393 is about 89.7272814371.

The spelling of 722393 in words is "seven hundred twenty-two thousand, three hundred ninety-three".