26198291 has 6 divisors (see below), whose sum is σ = 30475620. Its totient is φ = 22455636.

The previous prime is 26198279. The next prime is 26198299. The reversal of 26198291 is 19289162.

It is not a de Polignac number, because 26198291 - 2¹⁰ = 26197267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26198299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267281 + ... + 267378.

It is an arithmetic number, because the mean of its divisors is an integer number (5079270).

Almost surely, 2^26198291 is an apocalyptic number.

26198291 is a deficient number, since it is larger than the sum of its proper divisors (4277329).

26198291 is an equidigital number, since it uses as much as digits as its factorization.

26198291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534673 (or 534666 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 26198291 is about 5118.4266137164. The cubic root of 26198291 is about 297.0008237988. Note that the first 3 decimals are identical.

The spelling of 26198291 in words is "twenty-six million, one hundred ninety-eight thousand, two hundred ninety-one".