722426685 has 16 divisors (see below), whose sum is σ = 1195741440. Its totient is φ = 372008000.

The previous prime is 722426647. The next prime is 722426689. The reversal of 722426685 is 586624227.

It is not a de Polignac number, because 722426685 - 2⁸ = 722426429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722426689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829941 + ... + 830810.

It is an arithmetic number, because the mean of its divisors is an integer number (74733840).

Almost surely, 2^722426685 is an apocalyptic number.

It is an amenable number.

722426685 is a deficient number, since it is larger than the sum of its proper divisors (473314755).

722426685 is a wasteful number, since it uses less digits than its factorization.

722426685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660788.

The product of its digits is 322560, while the sum is 42.

The square root of 722426685 is about 26877.9962980874. The cubic root of 722426685 is about 897.2867606879.

The spelling of 722426685 in words is "seven hundred twenty-two million, four hundred twenty-six thousand, six hundred eighty-five".