22826989 has 2 divisors, whose sum is σ = 22826990. Its totient is φ = 22826988.

The previous prime is 22826977. The next prime is 22827019. The reversal of 22826989 is 98962822.

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., 15444900 + 7382089 = 3930^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 22826989 - 2⁵ = 22826957 is a prime.

It is a super-2 number, since 2×22826989² = 1042142853612242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22826939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11413494 + 11413495.

It is an arithmetic number, because the mean of its divisors is an integer number (11413495).

Almost surely, 2^22826989 is an apocalyptic number.

It is an amenable number.

22826989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22826989 is an equidigital number, since it uses as much as digits as its factorization.

22826989 is an evil number, because the sum of its binary digits is even.

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

The square root of 22826989 is about 4777.7598307156. The cubic root of 22826989 is about 283.6718296574.

Adding to 22826989 its product of digits (248832), we get a triangular number (23075821 = T₆₇₉₃).

The spelling of 22826989 in words is "twenty-two million, eight hundred twenty-six thousand, nine hundred eighty-nine".