22986289 has 2 divisors, whose sum is σ = 22986290. Its totient is φ = 22986288.

The previous prime is 22986251. The next prime is 22986307. The reversal of 22986289 is 98268922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14691889 + 8294400 = 3833^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 22986289 - 2²¹ = 20889137 is a prime.

It is not a weakly prime, because it can be changed into another prime (22986239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493144 + 11493145.

It is an arithmetic number, because the mean of its divisors is an integer number (11493145).

Almost surely, 2^22986289 is an apocalyptic number.

It is an amenable number.

22986289 is a deficient number, since it is larger than the sum of its proper divisors (1).

22986289 is an equidigital number, since it uses as much as digits as its factorization.

22986289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 22986289 is about 4794.4018396459. The cubic root of 22986289 is about 284.3301762303.

The spelling of 22986289 in words is "twenty-two million, nine hundred eighty-six thousand, two hundred eighty-nine".