22722715 has 8 divisors (see below), whose sum is σ = 27674640. Its totient is φ = 17906592.

The previous prime is 22722709. The next prime is 22722719. The reversal of 22722715 is 51722722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22722715 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22722719) 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, 33580 + ... + 34249.

It is an arithmetic number, because the mean of its divisors is an integer number (3459330).

Almost surely, 2^22722715 is an apocalyptic number.

22722715 is a deficient number, since it is larger than the sum of its proper divisors (4951925).

22722715 is an equidigital number, since it uses as much as digits as its factorization.

22722715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67901.

The product of its digits is 3920, while the sum is 28.

The square root of 22722715 is about 4766.8349037910. The cubic root of 22722715 is about 283.2392313412.

The spelling of 22722715 in words is "twenty-two million, seven hundred twenty-two thousand, seven hundred fifteen".