722352389 has 8 divisors (see below), whose sum is σ = 834375168. Its totient is φ = 618055360.

The previous prime is 722352377. The next prime is 722352401. The reversal of 722352389 is 983253227.

It is an interprime number because it is at equal distance from previous prime (722352377) and next prime (722352401).

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 722352389 - 2⁴ = 722352373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722352349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931237 + ... + 1931610.

It is an arithmetic number, because the mean of its divisors is an integer number (104296896).

Almost surely, 2^722352389 is an apocalyptic number.

It is an amenable number.

722352389 is a deficient number, since it is larger than the sum of its proper divisors (112022779).

722352389 is a wasteful number, since it uses less digits than its factorization.

722352389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862875.

The product of its digits is 181440, while the sum is 41.

The square root of 722352389 is about 26876.6141654785. The cubic root of 722352389 is about 897.2559999643.

The spelling of 722352389 in words is "seven hundred twenty-two million, three hundred fifty-two thousand, three hundred eighty-nine".