22079427 has 4 divisors (see below), whose sum is σ = 29439240. Its totient is φ = 14719616.

The previous prime is 22079423. The next prime is 22079437. The reversal of 22079427 is 72497022.

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 22079427 - 2² = 22079423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22079423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3679902 + ... + 3679907.

It is an arithmetic number, because the mean of its divisors is an integer number (7359810).

Almost surely, 2^22079427 is an apocalyptic number.

22079427 is a deficient number, since it is larger than the sum of its proper divisors (7359813).

22079427 is an equidigital number, since it uses as much as digits as its factorization.

22079427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7359812.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 22079427 is about 4698.8750781437. The cubic root of 22079427 is about 280.5407365190.

The spelling of 22079427 in words is "twenty-two million, seventy-nine thousand, four hundred twenty-seven".