22299779 has 2 divisors, whose sum is σ = 22299780. Its totient is φ = 22299778.

The previous prime is 22299773. The next prime is 22299793. The reversal of 22299779 is 97799222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22299779 - 2⁸ = 22299523 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22299773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11149889 + 11149890.

It is an arithmetic number, because the mean of its divisors is an integer number (11149890).

Almost surely, 2^22299779 is an apocalyptic number.

22299779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22299779 is an equidigital number, since it uses as much as digits as its factorization.

22299779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 22299779 is about 4722.2641815129. The cubic root of 22299779 is about 281.4709116053.

It can be divided in two parts, 222 and 99779, that added together give a palindrome (100001).

The spelling of 22299779 in words is "twenty-two million, two hundred ninety-nine thousand, seven hundred seventy-nine".