722395 has 4 divisors (see below), whose sum is σ = 866880. Its totient is φ = 577912.

The previous prime is 722389. The next prime is 722411. The reversal of 722395 is 593227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 722395 - 2⁵ = 722363 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72235 + ... + 72244.

It is an arithmetic number, because the mean of its divisors is an integer number (216720).

2⁷²²³⁹⁵ is an apocalyptic number.

722395 is a deficient number, since it is larger than the sum of its proper divisors (144485).

722395 is a wasteful number, since it uses less digits than its factorization.

722395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144484.

The product of its digits is 3780, while the sum is 28.

The square root of 722395 is about 849.9382330499. The cubic root of 722395 is about 89.7273642426.

The spelling of 722395 in words is "seven hundred twenty-two thousand, three hundred ninety-five".