722345739 has 8 divisors (see below), whose sum is σ = 963402960. Its totient is φ = 481426176.

The previous prime is 722345719. The next prime is 722345779. The reversal of 722345739 is 937543227.

722345739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 722345739 - 2⁵ = 722345707 is a prime.

It is a super-2 number, since 2×722345739² = 1043566733302912242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 722345739.

It is not an unprimeable number, because it can be changed into a prime (722345719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21474 + ... + 43655.

It is an arithmetic number, because the mean of its divisors is an integer number (120425370).

Almost surely, 2^722345739 is an apocalyptic number.

722345739 is a deficient number, since it is larger than the sum of its proper divisors (241057221).

722345739 is a wasteful number, since it uses less digits than its factorization.

722345739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68829.

The product of its digits is 317520, while the sum is 42.

The square root of 722345739 is about 26876.4904516940. The cubic root of 722345739 is about 897.2532465664.

The spelling of 722345739 in words is "seven hundred twenty-two million, three hundred forty-five thousand, seven hundred thirty-nine".