22820279 has 2 divisors, whose sum is σ = 22820280. Its totient is φ = 22820278.

The previous prime is 22820261. The next prime is 22820297. The reversal of 22820279 is 97202822.

Together with next prime (22820297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (22820261) and next prime (22820297).

It is a cyclic number.

It is not a de Polignac number, because 22820279 - 2⁸ = 22820023 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22820779) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11410139 + 11410140.

It is an arithmetic number, because the mean of its divisors is an integer number (11410140).

Almost surely, 2^22820279 is an apocalyptic number.

22820279 is a deficient number, since it is larger than the sum of its proper divisors (1).

22820279 is an equidigital number, since it uses as much as digits as its factorization.

22820279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22820279 is about 4777.0575671641. The cubic root of 22820279 is about 283.6440317948.

The spelling of 22820279 in words is "twenty-two million, eight hundred twenty thousand, two hundred seventy-nine".