722667606 has 16 divisors (see below), whose sum is σ = 1445633904. Its totient is φ = 240839424.

The previous prime is 722667593. The next prime is 722667611. The reversal of 722667606 is 606766227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30306 + ... + 48618.

It is an arithmetic number, because the mean of its divisors is an integer number (90352119).

Almost surely, 2^722667606 is an apocalyptic number.

722667606 is an abundant number, since it is smaller than the sum of its proper divisors (722966298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722667606 is a wasteful number, since it uses less digits than its factorization.

722667606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24895.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 722667606 is about 26882.4776759881. The cubic root of 722667606 is about 897.3864945441.

The spelling of 722667606 in words is "seven hundred twenty-two million, six hundred sixty-seven thousand, six hundred six".