722662659 has 12 divisors (see below), whose sum is σ = 1046807736. Its totient is φ = 480408192.

The previous prime is 722662643. The next prime is 722662667. The reversal of 722662659 is 956266227.

It is not a de Polignac number, because 722662659 - 2⁴ = 722662643 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (722669659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110557 + ... + 116910.

It is an arithmetic number, because the mean of its divisors is an integer number (87233978).

Almost surely, 2^722662659 is an apocalyptic number.

722662659 is a deficient number, since it is larger than the sum of its proper divisors (324145077).

722662659 is a wasteful number, since it uses less digits than its factorization.

722662659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227826 (or 227823 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 722662659 is about 26882.3856642226. The cubic root of 722662659 is about 897.3844468618.

The spelling of 722662659 in words is "seven hundred twenty-two million, six hundred sixty-two thousand, six hundred fifty-nine".