22027779 has 6 divisors (see below), whose sum is σ = 31817916. Its totient is φ = 14685180.

The previous prime is 22027777. The next prime is 22027793. The reversal of 22027779 is 97772022.

It is not a de Polignac number, because 22027779 - 2¹ = 22027777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22027777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1223757 + ... + 1223774.

It is an arithmetic number, because the mean of its divisors is an integer number (5302986).

Almost surely, 2^22027779 is an apocalyptic number.

22027779 is a deficient number, since it is larger than the sum of its proper divisors (9790137).

22027779 is a wasteful number, since it uses less digits than its factorization.

22027779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447537 (or 2447534 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 22027779 is about 4693.3760769834. The cubic root of 22027779 is about 280.3218195989.

The spelling of 22027779 in words is "twenty-two million, twenty-seven thousand, seven hundred seventy-nine".