26804897 has 4 divisors (see below), whose sum is σ = 30634176. Its totient is φ = 22975620.

The previous prime is 26804893. The next prime is 26804923. The reversal of 26804897 is 79840862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26804897 - 2² = 26804893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26804893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914629 + ... + 1914642.

It is an arithmetic number, because the mean of its divisors is an integer number (7658544).

Almost surely, 2^26804897 is an apocalyptic number.

It is an amenable number.

26804897 is a deficient number, since it is larger than the sum of its proper divisors (3829279).

26804897 is an equidigital number, since it uses as much as digits as its factorization.

26804897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829278.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 26804897 is about 5177.3445896521. The cubic root of 26804897 is about 299.2756487548.

The spelling of 26804897 in words is "twenty-six million, eight hundred four thousand, eight hundred ninety-seven".