722165943 has 4 divisors (see below), whose sum is σ = 962887928. Its totient is φ = 481443960.

The previous prime is 722165911. The next prime is 722165953. The reversal of 722165943 is 349561227.

722165943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 722165943 - 2⁵ = 722165911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722165953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120360988 + ... + 120360993.

It is an arithmetic number, because the mean of its divisors is an integer number (240721982).

Almost surely, 2^722165943 is an apocalyptic number.

722165943 is a deficient number, since it is larger than the sum of its proper divisors (240721985).

722165943 is a wasteful number, since it uses less digits than its factorization.

722165943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240721984.

The product of its digits is 90720, while the sum is 39.

The square root of 722165943 is about 26873.1453871704. The cubic root of 722165943 is about 897.1787965616.

The spelling of 722165943 in words is "seven hundred twenty-two million, one hundred sixty-five thousand, nine hundred forty-three".