26109493 has 4 divisors (see below), whose sum is σ = 26178048. Its totient is φ = 26040940.

The previous prime is 26109491. The next prime is 26109529. The reversal of 26109493 is 39490162.

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 26109493 - 2¹ = 26109491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26109491) 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, 33703 + ... + 34468.

It is an arithmetic number, because the mean of its divisors is an integer number (6544512).

Almost surely, 2^26109493 is an apocalyptic number.

It is an amenable number.

26109493 is a deficient number, since it is larger than the sum of its proper divisors (68555).

26109493 is an equidigital number, since it uses as much as digits as its factorization.

26109493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68554.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 26109493 is about 5109.7449055701. The cubic root of 26109493 is about 296.6648867180.

The spelling of 26109493 in words is "twenty-six million, one hundred nine thousand, four hundred ninety-three".