26861885 has 16 divisors (see below), whose sum is σ = 33331584. Its totient is φ = 20768832.

The previous prime is 26861881. The next prime is 26861909. The reversal of 26861885 is 58816862.

It is a cyclic number.

It is not a de Polignac number, because 26861885 - 2² = 26861881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26861881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21539 + ... + 22751.

It is an arithmetic number, because the mean of its divisors is an integer number (2083224).

Almost surely, 2^26861885 is an apocalyptic number.

It is an amenable number.

26861885 is a deficient number, since it is larger than the sum of its proper divisors (6469699).

26861885 is a wasteful number, since it uses less digits than its factorization.

26861885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364.

The product of its digits is 184320, while the sum is 44.

The square root of 26861885 is about 5182.8452610511. The cubic root of 26861885 is about 299.4875882419.

The spelling of 26861885 in words is "twenty-six million, eight hundred sixty-one thousand, eight hundred eighty-five".