722417105 has 4 divisors (see below), whose sum is σ = 866900532. Its totient is φ = 577933680.

The previous prime is 722417077. The next prime is 722417147. The reversal of 722417105 is 501714227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72982849 + 649434256 = 8543^2 + 25484^2 .

It is not a de Polignac number, because 722417105 - 2⁶ = 722417041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72241706 + ... + 72241715.

It is an arithmetic number, because the mean of its divisors is an integer number (216725133).

Almost surely, 2^722417105 is an apocalyptic number.

It is an amenable number.

722417105 is a deficient number, since it is larger than the sum of its proper divisors (144483427).

722417105 is a wasteful number, since it uses less digits than its factorization.

722417105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144483426.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 722417105 is about 26877.8180848074. The cubic root of 722417105 is about 897.2827944053.

The spelling of 722417105 in words is "seven hundred twenty-two million, four hundred seventeen thousand, one hundred five".