26991364 has 12 divisors (see below), whose sum is σ = 47476044. Its totient is φ = 13426784.

The previous prime is 26991353. The next prime is 26991383. The reversal of 26991364 is 46319962.

It can be written as a sum of positive squares in 2 ways, for example, as 17640000 + 9351364 = 4200^2 + 3058^2 .

It is an unprimeable number.

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, 16339 + ... + 17914.

It is an arithmetic number, because the mean of its divisors is an integer number (3956337).

Almost surely, 2^26991364 is an apocalyptic number.

It is an amenable number.

26991364 is a deficient number, since it is larger than the sum of its proper divisors (20484680).

26991364 is a wasteful number, since it uses less digits than its factorization.

26991364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34454 (or 34452 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The square root of 26991364 is about 5195.3213567594. The cubic root of 26991364 is about 299.9680114040.

The spelling of 26991364 in words is "twenty-six million, nine hundred ninety-one thousand, three hundred sixty-four".