26860117 has 4 divisors (see below), whose sum is σ = 26892460. Its totient is φ = 26827776.

The previous prime is 26860073. The next prime is 26860147. The reversal of 26860117 is 71106862.

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 7623121 + 19236996 = 2761^2 + 4386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26860117 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 (26860147) 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, 14892 + ... + 16597.

It is an arithmetic number, because the mean of its divisors is an integer number (6723115).

Almost surely, 2^26860117 is an apocalyptic number.

It is an amenable number.

26860117 is a deficient number, since it is larger than the sum of its proper divisors (32343).

26860117 is an equidigital number, since it uses as much as digits as its factorization.

26860117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32342.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 26860117 is about 5182.6746955602. The cubic root of 26860117 is about 299.4810175232.

Adding to 26860117 its reverse (71106862), we get a palindrome (97966979).

The spelling of 26860117 in words is "twenty-six million, eight hundred sixty thousand, one hundred seventeen".