26804986 has 16 divisors (see below), whose sum is σ = 44012808. Its totient is φ = 12168000.

The previous prime is 26804977. The next prime is 26804989. The reversal of 26804986 is 68940862.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20529961 + 6275025 = 4531^2 + 2505^2 .

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 7 ways as a sum of consecutive naturals, for example, 6865 + ... + 10036.

Almost surely, 2^26804986 is an apocalyptic number.

26804986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26804986 is a deficient number, since it is larger than the sum of its proper divisors (17207822).

26804986 is a wasteful number, since it uses less digits than its factorization.

26804986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16977.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 26804986 is about 5177.3531847847. The cubic root of 26804986 is about 299.2759799817.

The spelling of 26804986 in words is "twenty-six million, eight hundred four thousand, nine hundred eighty-six".