26974247 has 4 divisors (see below), whose sum is σ = 27844416. Its totient is φ = 26104080.

The previous prime is 26974237. The next prime is 26974271. The reversal of 26974247 is 74247962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26974247 - 2⁴ = 26974231 is a prime.

It is a super-4 number, since 4×26974247⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26974237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435038 + ... + 435099.

It is an arithmetic number, because the mean of its divisors is an integer number (6961104).

Almost surely, 2^26974247 is an apocalyptic number.

26974247 is a deficient number, since it is larger than the sum of its proper divisors (870169).

26974247 is an equidigital number, since it uses as much as digits as its factorization.

26974247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870168.

The product of its digits is 169344, while the sum is 41.

The square root of 26974247 is about 5193.6737479360. The cubic root of 26974247 is about 299.9045881770.

The spelling of 26974247 in words is "twenty-six million, nine hundred seventy-four thousand, two hundred forty-seven".