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27407 is a prime number
BaseRepresentation
bin110101100001111
31101121002
412230033
51334112
6330515
7142622
oct65417
941532
1027407
1119656
1213a3b
13c623
149db9
1581c2
hex6b0f

27407 has 2 divisors, whose sum is σ = 27408. Its totient is φ = 27406.

The previous prime is 27397. The next prime is 27409. The reversal of 27407 is 70472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27407 - 212 = 23311 is a prime.

It is a super-2 number, since 2×274072 = 1502287298, which contains 22 as substring.

Together with 27409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27409) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13703 + 13704.

It is an arithmetic number, because the mean of its divisors is an integer number (13704).

227407 is an apocalyptic number.

27407 is a deficient number, since it is larger than the sum of its proper divisors (1).

27407 is an equidigital number, since it uses as much as digits as its factorization.

27407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 27407 is about 165.5505964955. The cubic root of 27407 is about 30.1499895950.

Adding to 27407 its reverse (70472), we get a palindrome (97879).

It can be divided in two parts, 27 and 407, that added together give a palindrome (434).

The spelling of 27407 in words is "twenty-seven thousand, four hundred seven", and thus it is an iban number.