26612197 has 4 divisors (see below), whose sum is σ = 26640576. Its totient is φ = 26583820.

The previous prime is 26612171. The next prime is 26612203. The reversal of 26612197 is 79121662.

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 a de Polignac number, because none of the positive numbers 2^k-26612197 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 (26612137) 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, 12733 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (6660144).

Almost surely, 2^26612197 is an apocalyptic number.

It is an amenable number.

26612197 is a deficient number, since it is larger than the sum of its proper divisors (28379).

26612197 is an equidigital number, since it uses as much as digits as its factorization.

26612197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28378.

The product of its digits is 9072, while the sum is 34.

The square root of 26612197 is about 5158.7010962063. The cubic root of 26612197 is about 298.5567605933.

The spelling of 26612197 in words is "twenty-six million, six hundred twelve thousand, one hundred ninety-seven".