26022197 has 4 divisors (see below), whose sum is σ = 26410656. Its totient is φ = 25633740.

The previous prime is 26022179. The next prime is 26022221. The reversal of 26022197 is 79122062.

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 an emirpimes, since its reverse is a distinct semiprime: 79122062 = 2 ⋅39561031.

It is a cyclic number.

It is not a de Polignac number, because 26022197 - 2¹⁰ = 26021173 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 (26022497) 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, 194129 + ... + 194262.

It is an arithmetic number, because the mean of its divisors is an integer number (6602664).

Almost surely, 2^26022197 is an apocalyptic number.

It is an amenable number.

26022197 is a deficient number, since it is larger than the sum of its proper divisors (388459).

26022197 is an equidigital number, since it uses as much as digits as its factorization.

26022197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388458.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 26022197 is about 5101.1956441603. The cubic root of 26022197 is about 296.3338886622. Note that the first 3 decimals are identical.

The spelling of 26022197 in words is "twenty-six million, twenty-two thousand, one hundred ninety-seven".