22612889 has 4 divisors (see below), whose sum is σ = 24352356. Its totient is φ = 20873424.

The previous prime is 22612879. The next prime is 22612897. The reversal of 22612889 is 98821622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5040025 + 17572864 = 2245^2 + 4192^2 .

It is not a de Polignac number, because 22612889 - 2¹⁶ = 22547353 is a prime.

It is a super-2 number, since 2×22612889² = 1022685497852642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22612819) 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, 869714 + ... + 869739.

It is an arithmetic number, because the mean of its divisors is an integer number (6088089).

Almost surely, 2^22612889 is an apocalyptic number.

It is an amenable number.

22612889 is a deficient number, since it is larger than the sum of its proper divisors (1739467).

22612889 is a wasteful number, since it uses less digits than its factorization.

22612889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739466.

The product of its digits is 27648, while the sum is 38.

The square root of 22612889 is about 4755.3011471409. The cubic root of 22612889 is about 282.7821661899.

The spelling of 22612889 in words is "twenty-two million, six hundred twelve thousand, eight hundred eighty-nine".