722913393 has 8 divisors (see below), whose sum is σ = 965528928. Its totient is φ = 481120064.

The previous prime is 722913361. The next prime is 722913403. The reversal of 722913393 is 393319227.

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 722913393 - 2⁵ = 722913361 is a prime.

It is a super-3 number, since 3×722913393³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (722913343) 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, 203496 + ... + 207017.

It is an arithmetic number, because the mean of its divisors is an integer number (120691116).

Almost surely, 2^722913393 is an apocalyptic number.

It is an amenable number.

722913393 is a deficient number, since it is larger than the sum of its proper divisors (242615535).

722913393 is a wasteful number, since it uses less digits than its factorization.

722913393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411103.

The product of its digits is 61236, while the sum is 39.

The square root of 722913393 is about 26887.0487967720. The cubic root of 722913393 is about 897.4882199347.

The spelling of 722913393 in words is "seven hundred twenty-two million, nine hundred thirteen thousand, three hundred ninety-three".