26197013 has 4 divisors (see below), whose sum is σ = 26208000. Its totient is φ = 26186028.

The previous prime is 26197009. The next prime is 26197021. The reversal of 26197013 is 31079162.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 26197013 - 2² = 26197009 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 (26197033) 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, 245 + ... + 7242.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^26197013 is an apocalyptic number.

It is an amenable number.

26197013 is a deficient number, since it is larger than the sum of its proper divisors (10987).

26197013 is an equidigital number, since it uses as much as digits as its factorization.

26197013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10986.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 26197013 is about 5118.3017691418. The cubic root of 26197013 is about 296.9959943079.

The spelling of 26197013 in words is "twenty-six million, one hundred ninety-seven thousand, thirteen".