722516323 has 4 divisors (see below), whose sum is σ = 729268920. Its totient is φ = 715763728.

The previous prime is 722516321. The next prime is 722516339. The reversal of 722516323 is 323615227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 722516323 - 2¹ = 722516321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722516321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3376138 + ... + 3376351.

It is an arithmetic number, because the mean of its divisors is an integer number (182317230).

Almost surely, 2^722516323 is an apocalyptic number.

722516323 is a deficient number, since it is larger than the sum of its proper divisors (6752597).

722516323 is a wasteful number, since it uses less digits than its factorization.

722516323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752596.

The product of its digits is 15120, while the sum is 31.

The square root of 722516323 is about 26879.6637441766. The cubic root of 722516323 is about 897.3238706424.

The spelling of 722516323 in words is "seven hundred twenty-two million, five hundred sixteen thousand, three hundred twenty-three".