26984159 has 2 divisors, whose sum is σ = 26984160. Its totient is φ = 26984158.

The previous prime is 26984141. The next prime is 26984173. The reversal of 26984159 is 95148962.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26984159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26984119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13492079 + 13492080.

It is an arithmetic number, because the mean of its divisors is an integer number (13492080).

Almost surely, 2^26984159 is an apocalyptic number.

26984159 is a deficient number, since it is larger than the sum of its proper divisors (1).

26984159 is an equidigital number, since it uses as much as digits as its factorization.

26984159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 26984159 is about 5194.6278981271. The cubic root of 26984159 is about 299.9413181518.

The spelling of 26984159 in words is "twenty-six million, nine hundred eighty-four thousand, one hundred fifty-nine".