22678091 has 2 divisors, whose sum is σ = 22678092. Its totient is φ = 22678090.

The previous prime is 22678067. The next prime is 22678109. The reversal of 22678091 is 19087622.

It is a happy number.

Together with next prime (22678109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22678091 - 2¹⁴ = 22661707 is a prime.

It is a super-2 number, since 2×22678091² = 1028591622808562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22678291) 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, 11339045 + 11339046.

It is an arithmetic number, because the mean of its divisors is an integer number (11339046).

Almost surely, 2^22678091 is an apocalyptic number.

22678091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22678091 is an equidigital number, since it uses as much as digits as its factorization.

22678091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 22678091 is about 4762.1519295377. The cubic root of 22678091 is about 283.0536967286.

The spelling of 22678091 in words is "twenty-two million, six hundred seventy-eight thousand, ninety-one".