26986986 has 64 divisors (see below), whose sum is σ = 66393600. Its totient is φ = 8071488.

The previous prime is 26986969. The next prime is 26986991. The reversal of 26986986 is 68968962.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25455 + ... + 26493.

It is an arithmetic number, because the mean of its divisors is an integer number (1037400).

Almost surely, 2^26986986 is an apocalyptic number.

26986986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26986986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33196800).

26986986 is an abundant number, since it is smaller than the sum of its proper divisors (39406614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26986986 is a wasteful number, since it uses less digits than its factorization.

26986986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1094 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 26986986 is about 5194.8999990375. The cubic root of 26986986 is about 299.9517922538.

It can be divided in two parts, 26986 and 986, that added together give a palindrome (27972).

The spelling of 26986986 in words is "twenty-six million, nine hundred eighty-six thousand, nine hundred eighty-six".