26897017 has 4 divisors (see below), whose sum is σ = 30739456. Its totient is φ = 23054580.

The previous prime is 26896999. The next prime is 26897053. The reversal of 26897017 is 71079862.

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 26897017 - 2⁷ = 26896889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26897617) 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, 1921209 + ... + 1921222.

It is an arithmetic number, because the mean of its divisors is an integer number (7684864).

Almost surely, 2^26897017 is an apocalyptic number.

It is an amenable number.

26897017 is a deficient number, since it is larger than the sum of its proper divisors (3842439).

26897017 is an equidigital number, since it uses as much as digits as its factorization.

26897017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842438.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 26897017 is about 5186.2334116389. The cubic root of 26897017 is about 299.6180955177.

The spelling of 26897017 in words is "twenty-six million, eight hundred ninety-seven thousand, seventeen".