26889401 has 16 divisors (see below), whose sum is σ = 33782400. Its totient is φ = 20791680.

The previous prime is 26889361. The next prime is 26889407. The reversal of 26889401 is 10498862.

It is not a de Polignac number, because 26889401 - 2⁶ = 26889337 is a prime.

It is a super-2 number, since 2×26889401² = 1446079772277602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26889407) 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 15 ways as a sum of consecutive naturals, for example, 9275 + ... + 11823.

It is an arithmetic number, because the mean of its divisors is an integer number (2111400).

Almost surely, 2^26889401 is an apocalyptic number.

It is an amenable number.

26889401 is a deficient number, since it is larger than the sum of its proper divisors (6892999).

26889401 is a wasteful number, since it uses less digits than its factorization.

26889401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 26889401 is about 5185.4991080898. The cubic root of 26889401 is about 299.5898134864.

The spelling of 26889401 in words is "twenty-six million, eight hundred eighty-nine thousand, four hundred one".