26730849 has 4 divisors (see below), whose sum is σ = 35641136. Its totient is φ = 17820564.

The previous prime is 26730829. The next prime is 26730857. The reversal of 26730849 is 94803762.

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 de Polignac number, because none of the positive numbers 2^k-26730849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26730829) by changing a digit.

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, 4455139 + ... + 4455144.

It is an arithmetic number, because the mean of its divisors is an integer number (8910284).

Almost surely, 2^26730849 is an apocalyptic number.

It is an amenable number.

26730849 is a deficient number, since it is larger than the sum of its proper divisors (8910287).

26730849 is an equidigital number, since it uses as much as digits as its factorization.

26730849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910286.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 26730849 is about 5170.1884878600. The cubic root of 26730849 is about 298.9998135739. Note that the first 3 decimals are identical.

The spelling of 26730849 in words is "twenty-six million, seven hundred thirty thousand, eight hundred forty-nine".