22820297 has 2 divisors, whose sum is σ = 22820298. Its totient is φ = 22820296.

The previous prime is 22820279. The next prime is 22820327. The reversal of 22820297 is 79202822.

Together with previous prime (22820279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17007376 + 5812921 = 4124^2 + 2411^2 .

It is a cyclic number.

It is not a de Polignac number, because 22820297 - 2¹² = 22816201 is a prime.

It is a Chen prime.

It is equal to p_1437584 and since 22820297 and 1437584 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22820597) 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 as a sum of consecutive naturals, namely, 11410148 + 11410149.

It is an arithmetic number, because the mean of its divisors is an integer number (11410149).

Almost surely, 2^22820297 is an apocalyptic number.

It is an amenable number.

22820297 is a deficient number, since it is larger than the sum of its proper divisors (1).

22820297 is an equidigital number, since it uses as much as digits as its factorization.

22820297 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 22820297 is about 4777.0594511687. The cubic root of 22820297 is about 283.6441063716.

The spelling of 22820297 in words is "twenty-two million, eight hundred twenty thousand, two hundred ninety-seven".