22105679 has 2 divisors, whose sum is σ = 22105680. Its totient is φ = 22105678.

The previous prime is 22105649. The next prime is 22105693. The reversal of 22105679 is 97650122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22105679 is a prime.

It is a super-2 number, since 2×22105679² = 977322088102082, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22105609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11052839 + 11052840.

It is an arithmetic number, because the mean of its divisors is an integer number (11052840).

Almost surely, 2^22105679 is an apocalyptic number.

22105679 is a deficient number, since it is larger than the sum of its proper divisors (1).

22105679 is an equidigital number, since it uses as much as digits as its factorization.

22105679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 22105679 is about 4701.6676828547. The cubic root of 22105679 is about 280.6518782694.

The spelling of 22105679 in words is "twenty-two million, one hundred five thousand, six hundred seventy-nine".