722661068 has 6 divisors (see below), whose sum is σ = 1264656876. Its totient is φ = 361330532.

The previous prime is 722661061. The next prime is 722661131. The reversal of 722661068 is 860166227.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (722661061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90332630 + ... + 90332637.

It is an arithmetic number, because the mean of its divisors is an integer number (210776146).

Almost surely, 2^722661068 is an apocalyptic number.

It is an amenable number.

722661068 is a deficient number, since it is larger than the sum of its proper divisors (541995808).

722661068 is a wasteful number, since it uses less digits than its factorization.

722661068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180665271 (or 180665269 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 722661068 is about 26882.3560723386. The cubic root of 722661068 is about 897.3837883066.

The spelling of 722661068 in words is "seven hundred twenty-two million, six hundred sixty-one thousand, sixty-eight".