22266687 has 4 divisors (see below), whose sum is σ = 29688920. Its totient is φ = 14844456.

The previous prime is 22266683. The next prime is 22266697. The reversal of 22266687 is 78666222.

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

It is not a de Polignac number, because 22266687 - 2² = 22266683 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 (22266683) 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, 3711112 + ... + 3711117.

It is an arithmetic number, because the mean of its divisors is an integer number (7422230).

Almost surely, 2^22266687 is an apocalyptic number.

22266687 is a deficient number, since it is larger than the sum of its proper divisors (7422233).

22266687 is an equidigital number, since it uses as much as digits as its factorization.

22266687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422232.

The product of its digits is 96768, while the sum is 39.

The square root of 22266687 is about 4718.7590529714. The cubic root of 22266687 is about 281.3316120689.

The spelling of 22266687 in words is "twenty-two million, two hundred sixty-six thousand, six hundred eighty-seven".