22000837 has 4 divisors (see below), whose sum is σ = 22048416. Its totient is φ = 21953260.

The previous prime is 22000819. The next prime is 22000859. The reversal of 22000837 is 73800022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73800022 = 2 ⋅36900011.

It is a cyclic number.

It is not a de Polignac number, because 22000837 - 2¹⁵ = 21968069 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 (22000817) 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, 23089 + ... + 24022.

It is an arithmetic number, because the mean of its divisors is an integer number (5512104).

Almost surely, 2^22000837 is an apocalyptic number.

It is an amenable number.

22000837 is a deficient number, since it is larger than the sum of its proper divisors (47579).

22000837 is an equidigital number, since it uses as much as digits as its factorization.

22000837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47578.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 22000837 is about 4690.5049834746. The cubic root of 22000837 is about 280.2074865158.

Adding to 22000837 its reverse (73800022), we get a palindrome (95800859).

The spelling of 22000837 in words is "twenty-two million, eight hundred thirty-seven", and thus it is an aban number.