22489879 has 4 divisors (see below), whose sum is σ = 22583440. Its totient is φ = 22396320.

The previous prime is 22489871. The next prime is 22489921. The reversal of 22489879 is 97898422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97898422 = 2 ⋅48949211.

It is a cyclic number.

It is not a de Polignac number, because 22489879 - 2³ = 22489871 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 (22489871) 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, 46419 + ... + 46900.

It is an arithmetic number, because the mean of its divisors is an integer number (5645860).

Almost surely, 2^22489879 is an apocalyptic number.

22489879 is a deficient number, since it is larger than the sum of its proper divisors (93561).

22489879 is an equidigital number, since it uses as much as digits as its factorization.

22489879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93560.

The product of its digits is 580608, while the sum is 49.

The square root of 22489879 is about 4742.3495231794. The cubic root of 22489879 is about 282.2684724240.

The spelling of 22489879 in words is "twenty-two million, four hundred eighty-nine thousand, eight hundred seventy-nine".