26341987 has 4 divisors (see below), whose sum is σ = 30105136. Its totient is φ = 22578840.

The previous prime is 26341957. The next prime is 26342021. The reversal of 26341987 is 78914362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78914362 = 2 ⋅39457181.

It is a cyclic number.

It is not a de Polignac number, because 26341987 - 2¹⁵ = 26309219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26341957) 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, 1881564 + ... + 1881577.

It is an arithmetic number, because the mean of its divisors is an integer number (7526284).

Almost surely, 2^26341987 is an apocalyptic number.

26341987 is a deficient number, since it is larger than the sum of its proper divisors (3763149).

26341987 is an equidigital number, since it uses as much as digits as its factorization.

26341987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763148.

The product of its digits is 72576, while the sum is 40.

The square root of 26341987 is about 5132.4445442693. Note that the first 3 decimals coincide. The cubic root of 26341987 is about 297.5428443815.

The spelling of 26341987 in words is "twenty-six million, three hundred forty-one thousand, nine hundred eighty-seven".