22000917 has 16 divisors (see below), whose sum is σ = 31877120. Its totient is φ = 13446000.

The previous prime is 22000897. The next prime is 22000919. The reversal of 22000917 is 71900022.

It is a happy number.

It is not a de Polignac number, because 22000917 - 2⁸ = 22000661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000893 and 22000902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000919) 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, 4459 + ... + 7992.

It is an arithmetic number, because the mean of its divisors is an integer number (1992320).

Almost surely, 2^22000917 is an apocalyptic number.

It is an amenable number.

22000917 is a deficient number, since it is larger than the sum of its proper divisors (9876203).

22000917 is a wasteful number, since it uses less digits than its factorization.

22000917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 22000917 is about 4690.5135113333. The cubic root of 22000917 is about 280.2078261479.

Adding to 22000917 its reverse (71900022), we get a palindrome (93900939).

The spelling of 22000917 in words is "twenty-two million, nine hundred seventeen", and thus it is an aban number.