722396 has 12 divisors (see below), whose sum is σ = 1286040. Its totient is φ = 354960.

The previous prime is 722389. The next prime is 722411. The reversal of 722396 is 693227.

722396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

722396 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295 + ... + 1766.

It is an arithmetic number, because the mean of its divisors is an integer number (107170).

2⁷²²³⁹⁶ is an apocalyptic number.

It is an amenable number.

722396 is a deficient number, since it is larger than the sum of its proper divisors (563644).

722396 is a wasteful number, since it uses less digits than its factorization.

722396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124 (or 3122 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 722396 is about 849.9388213277. The cubic root of 722396 is about 89.7274056453.

The spelling of 722396 in words is "seven hundred twenty-two thousand, three hundred ninety-six".