22117679 has 2 divisors, whose sum is σ = 22117680. Its totient is φ = 22117678.

The previous prime is 22117643. The next prime is 22117681. The reversal of 22117679 is 97671122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22117679 - 2¹⁶ = 22052143 is a prime.

Together with 22117681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22117639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11058839 + 11058840.

It is an arithmetic number, because the mean of its divisors is an integer number (11058840).

Almost surely, 2^22117679 is an apocalyptic number.

22117679 is a deficient number, since it is larger than the sum of its proper divisors (1).

22117679 is an equidigital number, since it uses as much as digits as its factorization.

22117679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 22117679 is about 4702.9436526499. The cubic root of 22117679 is about 280.7026527531.

The spelling of 22117679 in words is "twenty-two million, one hundred seventeen thousand, six hundred seventy-nine".