26987812 has 12 divisors (see below), whose sum is σ = 48120156. Its totient is φ = 13239200.

The previous prime is 26987773. The next prime is 26987819. The reversal of 26987812 is 21878962.

It can be written as a sum of positive squares in 2 ways, for example, as 15872256 + 11115556 = 3984^2 + 3334^2 .

It is not an unprimeable number, because it can be changed into a prime (26987819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63439 + ... + 63862.

It is an arithmetic number, because the mean of its divisors is an integer number (4010013).

Almost surely, 2^26987812 is an apocalyptic number.

It is an amenable number.

26987812 is a deficient number, since it is larger than the sum of its proper divisors (21132344).

26987812 is a wasteful number, since it uses less digits than its factorization.

26987812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127358 (or 127356 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 26987812 is about 5194.9794994783. The cubic root of 26987812 is about 299.9548524653.

The spelling of 26987812 in words is "twenty-six million, nine hundred eighty-seven thousand, eight hundred twelve".