26984117 has 4 divisors (see below), whose sum is σ = 28571436. Its totient is φ = 25396800.

The previous prime is 26984107. The next prime is 26984119. The reversal of 26984117 is 71148962.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20151121 + 6832996 = 4489^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 26984117 - 2⁶ = 26984053 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 (26984119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793634 + ... + 793667.

It is an arithmetic number, because the mean of its divisors is an integer number (7142859).

Almost surely, 2^26984117 is an apocalyptic number.

It is an amenable number.

26984117 is a deficient number, since it is larger than the sum of its proper divisors (1587319).

26984117 is a wasteful number, since it uses less digits than its factorization.

26984117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587318.

The product of its digits is 24192, while the sum is 38.

The square root of 26984117 is about 5194.6238554875. The cubic root of 26984117 is about 299.9411625353.

The spelling of 26984117 in words is "twenty-six million, nine hundred eighty-four thousand, one hundred seventeen".