26849891 has 8 divisors (see below), whose sum is σ = 27346704. Its totient is φ = 26357760.

The previous prime is 26849873. The next prime is 26849899. The reversal of 26849891 is 19894862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26849891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26849899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11651 + ... + 13763.

It is an arithmetic number, because the mean of its divisors is an integer number (3418338).

Almost surely, 2^26849891 is an apocalyptic number.

26849891 is a deficient number, since it is larger than the sum of its proper divisors (496813).

26849891 is a wasteful number, since it uses less digits than its factorization.

26849891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its digits is 248832, while the sum is 47.

The square root of 26849891 is about 5181.6880454153. The cubic root of 26849891 is about 299.4430072443.

The spelling of 26849891 in words is "twenty-six million, eight hundred forty-nine thousand, eight hundred ninety-one".