26889601 has 4 divisors (see below), whose sum is σ = 26909632. Its totient is φ = 26869572.

The previous prime is 26889587. The next prime is 26889607. The reversal of 26889601 is 10698862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26889601 - 2¹⁵ = 26856833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26889607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7845 + ... + 10738.

It is an arithmetic number, because the mean of its divisors is an integer number (6727408).

Almost surely, 2^26889601 is an apocalyptic number.

It is an amenable number.

26889601 is a deficient number, since it is larger than the sum of its proper divisors (20031).

26889601 is a wasteful number, since it uses less digits than its factorization.

26889601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20030.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 26889601 is about 5185.5183926007. The cubic root of 26889601 is about 299.5905562551.

The spelling of 26889601 in words is "twenty-six million, eight hundred eighty-nine thousand, six hundred one".