26321197 has 4 divisors (see below), whose sum is σ = 30081376. Its totient is φ = 22561020.

The previous prime is 26321189. The next prime is 26321227. The reversal of 26321197 is 79112362.

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 26321197 - 2³ = 26321189 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 (26321107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1880079 + ... + 1880092.

It is an arithmetic number, because the mean of its divisors is an integer number (7520344).

Almost surely, 2^26321197 is an apocalyptic number.

It is an amenable number.

26321197 is a deficient number, since it is larger than the sum of its proper divisors (3760179).

26321197 is an equidigital number, since it uses as much as digits as its factorization.

26321197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760178.

The product of its digits is 4536, while the sum is 31.

The square root of 26321197 is about 5130.4187938218. The cubic root of 26321197 is about 297.4645467721.

The spelling of 26321197 in words is "twenty-six million, three hundred twenty-one thousand, one hundred ninety-seven".