22902989 has 4 divisors (see below), whose sum is σ = 22938300. Its totient is φ = 22867680.

The previous prime is 22902983. The next prime is 22902991. The reversal of 22902989 is 98920922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98920922 = 2 ⋅49460461.

It can be written as a sum of positive squares in 2 ways, for example, as 11055625 + 11847364 = 3325^2 + 3442^2 .

It is a cyclic number.

It is not a de Polignac number, because 22902989 - 2¹⁶ = 22837453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22902983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16664 + ... + 17985.

It is an arithmetic number, because the mean of its divisors is an integer number (5734575).

Almost surely, 2^22902989 is an apocalyptic number.

It is an amenable number.

22902989 is a deficient number, since it is larger than the sum of its proper divisors (35311).

22902989 is an equidigital number, since it uses as much as digits as its factorization.

22902989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35310.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 22902989 is about 4785.7067398661. The cubic root of 22902989 is about 283.9862991804.

The spelling of 22902989 in words is "twenty-two million, nine hundred two thousand, nine hundred eighty-nine".