27400117 has 4 divisors (see below), whose sum is σ = 27416620. Its totient is φ = 27383616.

The previous prime is 27400103. The next prime is 27400133. The reversal of 27400117 is 71100472.

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 2390116 + 25010001 = 1546^2 + 5001^2 .

It is a cyclic number.

It is not a de Polignac number, because 27400117 - 2⁷ = 27399989 is a prime.

It is a super-2 number, since 2×27400117² = 1501532823227378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27440117) 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, 5442 + ... + 9187.

It is an arithmetic number, because the mean of its divisors is an integer number (6854155).

Almost surely, 2^27400117 is an apocalyptic number.

It is an amenable number.

27400117 is a deficient number, since it is larger than the sum of its proper divisors (16503).

27400117 is a wasteful number, since it uses less digits than its factorization.

27400117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16502.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 27400117 is about 5234.5121071596. The cubic root of 27400117 is about 301.4746542539.

Adding to 27400117 its reverse (71100472), we get a palindrome (98500589).

The spelling of 27400117 in words is "twenty-seven million, four hundred thousand, one hundred seventeen".