26801091 has 8 divisors (see below), whose sum is σ = 39705360. Its totient is φ = 17867376.

The previous prime is 26801069. The next prime is 26801101. The reversal of 26801091 is 19010862.

It is not a de Polignac number, because 26801091 - 2⁵ = 26801059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 992633 = 26801091 / (2 + 6 + 8 + 0 + 1 + 0 + 9 + 1).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (26801041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496290 + ... + 496343.

It is an arithmetic number, because the mean of its divisors is an integer number (4963170).

Almost surely, 2^26801091 is an apocalyptic number.

26801091 is a deficient number, since it is larger than the sum of its proper divisors (12904269).

26801091 is an equidigital number, since it uses as much as digits as its factorization.

26801091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992642 (or 992636 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 26801091 is about 5176.9770136635. The cubic root of 26801091 is about 299.2614834696.

The spelling of 26801091 in words is "twenty-six million, eight hundred one thousand, ninety-one".