26798865 has 8 divisors (see below), whose sum is σ = 42878208. Its totient is φ = 14292720.

The previous prime is 26798843. The next prime is 26798909. The reversal of 26798865 is 56889762.

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

It is not a de Polignac number, because 26798865 - 2⁵ = 26798833 is a prime.

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, 893281 + ... + 893310.

It is an arithmetic number, because the mean of its divisors is an integer number (5359776).

Almost surely, 2^26798865 is an apocalyptic number.

It is an amenable number.

26798865 is a deficient number, since it is larger than the sum of its proper divisors (16079343).

26798865 is a wasteful number, since it uses less digits than its factorization.

26798865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786599.

The product of its digits is 1451520, while the sum is 51.

The square root of 26798865 is about 5176.7620188686. The cubic root of 26798865 is about 299.2531980543.

The spelling of 26798865 in words is "twenty-six million, seven hundred ninety-eight thousand, eight hundred sixty-five".