22116639 has 16 divisors (see below), whose sum is σ = 31606272. Its totient is φ = 13720608.

The previous prime is 22116637. The next prime is 22116641. The reversal of 22116639 is 93661122.

It is an interprime number because it is at equal distance from previous prime (22116637) and next prime (22116641).

It is not a de Polignac number, because 22116639 - 2¹ = 22116637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22116637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1779 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (1975392).

Almost surely, 2^22116639 is an apocalyptic number.

22116639 is a deficient number, since it is larger than the sum of its proper divisors (9489633).

22116639 is a wasteful number, since it uses less digits than its factorization.

22116639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8726.

The product of its digits is 3888, while the sum is 30.

The square root of 22116639 is about 4702.8330823026. The cubic root of 22116639 is about 280.6982530248.

The spelling of 22116639 in words is "twenty-two million, one hundred sixteen thousand, six hundred thirty-nine".