22086613 has 4 divisors (see below), whose sum is σ = 22104940. Its totient is φ = 22068288.

The previous prime is 22086611. The next prime is 22086629. The reversal of 22086613 is 31668022.

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 20629764 + 1456849 = 4542^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 22086613 - 2¹ = 22086611 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 (22086611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7218 + ... + 9811.

It is an arithmetic number, because the mean of its divisors is an integer number (5526235).

Almost surely, 2^22086613 is an apocalyptic number.

It is an amenable number.

22086613 is a deficient number, since it is larger than the sum of its proper divisors (18327).

22086613 is a wasteful number, since it uses less digits than its factorization.

22086613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18326.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22086613 is about 4699.6396670383. The cubic root of 22086613 is about 280.5711682729.

The spelling of 22086613 in words is "twenty-two million, eighty-six thousand, six hundred thirteen".