26988205 has 8 divisors (see below), whose sum is σ = 32465304. Its totient is φ = 21537600.

The previous prime is 26988191. The next prime is 26988229. The reversal of 26988205 is 50288962.

It can be written as a sum of positive squares in 4 ways, for example, as 2515396 + 24472809 = 1586^2 + 4947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26988205 - 2⁹ = 26987693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4306 + ... + 8515.

It is an arithmetic number, because the mean of its divisors is an integer number (4058163).

Almost surely, 2^26988205 is an apocalyptic number.

It is an amenable number.

26988205 is a deficient number, since it is larger than the sum of its proper divisors (5477099).

26988205 is a wasteful number, since it uses less digits than its factorization.

26988205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13247.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 26988205 is about 5195.0173243215. The cubic root of 26988205 is about 299.9563084520.

The spelling of 26988205 in words is "twenty-six million, nine hundred eighty-eight thousand, two hundred five".