26671291 has 2 divisors, whose sum is σ = 26671292. Its totient is φ = 26671290.

The previous prime is 26671273. The next prime is 26671301. The reversal of 26671291 is 19217662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26671291 - 2⁷ = 26671163 is a prime.

It is a super-2 number, since 2×26671291² = 1422715527213362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26671241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13335645 + 13335646.

It is an arithmetic number, because the mean of its divisors is an integer number (13335646).

Almost surely, 2^26671291 is an apocalyptic number.

26671291 is a deficient number, since it is larger than the sum of its proper divisors (1).

26671291 is an equidigital number, since it uses as much as digits as its factorization.

26671291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 26671291 is about 5164.4255246833. The cubic root of 26671291 is about 298.7775850301. Note that the first 3 decimals are identical.

It can be divided in two parts, 26671 and 291, that added together give a palindrome (26962).

The spelling of 26671291 in words is "twenty-six million, six hundred seventy-one thousand, two hundred ninety-one".