26804985 has 16 divisors (see below), whose sum is σ = 43493760. Its totient is φ = 14094080.

The previous prime is 26804977. The next prime is 26804989. The reversal of 26804985 is 58940862.

It is not a de Polignac number, because 26804985 - 2³ = 26804977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26804989) 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, 11520 + ... + 13649.

It is an arithmetic number, because the mean of its divisors is an integer number (2718360).

Almost surely, 2^26804985 is an apocalyptic number.

It is an amenable number.

26804985 is a deficient number, since it is larger than the sum of its proper divisors (16688775).

26804985 is a wasteful number, since it uses less digits than its factorization.

26804985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25248.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 26804985 is about 5177.3530882102. The cubic root of 26804985 is about 299.2759762600.

The spelling of 26804985 in words is "twenty-six million, eight hundred four thousand, nine hundred eighty-five".