722425861 has 8 divisors (see below), whose sum is σ = 738209664. Its totient is φ = 706659360.

The previous prime is 722425859. The next prime is 722425901. The reversal of 722425861 is 168524227.

It is a happy number.

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 722425861 - 2¹ = 722425859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722425861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722425661) 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, 115921 + ... + 121993.

It is an arithmetic number, because the mean of its divisors is an integer number (92276208).

Almost surely, 2^722425861 is an apocalyptic number.

It is an amenable number.

722425861 is a deficient number, since it is larger than the sum of its proper divisors (15783803).

722425861 is a wasteful number, since it uses less digits than its factorization.

722425861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651.

The product of its digits is 53760, while the sum is 37.

The square root of 722425861 is about 26877.9809695595. The cubic root of 722425861 is about 897.2864195393.

The spelling of 722425861 in words is "seven hundred twenty-two million, four hundred twenty-five thousand, eight hundred sixty-one".