22085579 has 2 divisors, whose sum is σ = 22085580. Its totient is φ = 22085578.

The previous prime is 22085573. The next prime is 22085587. The reversal of 22085579 is 97558022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22085579 is a prime.

It is not a weakly prime, because it can be changed into another prime (22085573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11042789 + 11042790.

It is an arithmetic number, because the mean of its divisors is an integer number (11042790).

Almost surely, 2^22085579 is an apocalyptic number.

22085579 is a deficient number, since it is larger than the sum of its proper divisors (1).

22085579 is an equidigital number, since it uses as much as digits as its factorization.

22085579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 22085579 is about 4699.5296573168. The cubic root of 22085579 is about 280.5667898271.

The spelling of 22085579 in words is "twenty-two million, eighty-five thousand, five hundred seventy-nine".