22108693 has 2 divisors, whose sum is σ = 22108694. Its totient is φ = 22108692.

The previous prime is 22108651. The next prime is 22108711. The reversal of 22108693 is 39680122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13593969 + 8514724 = 3687^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 22108693 - 2¹³ = 22100501 is a prime.

It is equal to p_1395643 and since 22108693 and 1395643 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22108613) 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 as a sum of consecutive naturals, namely, 11054346 + 11054347.

It is an arithmetic number, because the mean of its divisors is an integer number (11054347).

Almost surely, 2^22108693 is an apocalyptic number.

It is an amenable number.

22108693 is a deficient number, since it is larger than the sum of its proper divisors (1).

22108693 is an equidigital number, since it uses as much as digits as its factorization.

22108693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22108693 is about 4701.9881964973. The cubic root of 22108693 is about 280.6646328549.

It can be divided in two parts, 22108 and 693, that added together give a square (22801 = 151²).

The spelling of 22108693 in words is "twenty-two million, one hundred eight thousand, six hundred ninety-three".