22123697 has 2 divisors, whose sum is σ = 22123698. Its totient is φ = 22123696.

The previous prime is 22123693. The next prime is 22123727. The reversal of 22123697 is 79632122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20757136 + 1366561 = 4556^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123697 - 2² = 22123693 is a prime.

It is not a weakly prime, because it can be changed into another prime (22123693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061848 + 11061849.

It is an arithmetic number, because the mean of its divisors is an integer number (11061849).

Almost surely, 2^22123697 is an apocalyptic number.

It is an amenable number.

22123697 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123697 is an equidigital number, since it uses as much as digits as its factorization.

22123697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 22123697 is about 4703.5834211801. The cubic root of 22123697 is about 280.7281092424.

The spelling of 22123697 in words is "twenty-two million, one hundred twenty-three thousand, six hundred ninety-seven".