26986117 has 4 divisors (see below), whose sum is σ = 27151840. Its totient is φ = 26820396.

The previous prime is 26986109. The next prime is 26986133. The reversal of 26986117 is 71168962.

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: 71168962 = 2 ⋅35584481.

It is a cyclic number.

It is not a de Polignac number, because 26986117 - 2³ = 26986109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26986117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26986147) 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, 82617 + ... + 82942.

It is an arithmetic number, because the mean of its divisors is an integer number (6787960).

Almost surely, 2^26986117 is an apocalyptic number.

It is an amenable number.

26986117 is a deficient number, since it is larger than the sum of its proper divisors (165723).

26986117 is a wasteful number, since it uses less digits than its factorization.

26986117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165722.

The product of its digits is 36288, while the sum is 40.

The square root of 26986117 is about 5194.8163586406. The cubic root of 26986117 is about 299.9485726661.

The spelling of 26986117 in words is "twenty-six million, nine hundred eighty-six thousand, one hundred seventeen".