22728607 has 8 divisors (see below), whose sum is σ = 24844752. Its totient is φ = 20620800.

The previous prime is 22728599. The next prime is 22728613. The reversal of 22728607 is 70682722.

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

It is a cyclic number.

It is not a de Polignac number, because 22728607 - 2³ = 22728599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22728697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4557 + ... + 8137.

It is an arithmetic number, because the mean of its divisors is an integer number (3105594).

Almost surely, 2^22728607 is an apocalyptic number.

22728607 is a deficient number, since it is larger than the sum of its proper divisors (2116145).

22728607 is a wasteful number, since it uses less digits than its factorization.

22728607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 22728607 is about 4767.4528838784. The cubic root of 22728607 is about 283.2637105364.

The spelling of 22728607 in words is "twenty-two million, seven hundred twenty-eight thousand, six hundred seven".