22295989 has 2 divisors, whose sum is σ = 22295990. Its totient is φ = 22295988.

The previous prime is 22295969. The next prime is 22296011. The reversal of 22295989 is 98959222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14760964 + 7535025 = 3842^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 22295989 - 2¹⁵ = 22263221 is a prime.

It is a super-2 number, since 2×22295989² = 994222250976242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22295909) 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, 11147994 + 11147995.

It is an arithmetic number, because the mean of its divisors is an integer number (11147995).

Almost surely, 2^22295989 is an apocalyptic number.

It is an amenable number.

22295989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22295989 is an equidigital number, since it uses as much as digits as its factorization.

22295989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 22295989 is about 4721.8628739090. The cubic root of 22295989 is about 281.4549647328.

The spelling of 22295989 in words is "twenty-two million, two hundred ninety-five thousand, nine hundred eighty-nine".