27449137 has 2 divisors, whose sum is σ = 27449138. Its totient is φ = 27449136.

The previous prime is 27449111. The next prime is 27449141. The reversal of 27449137 is 73194472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 5180176 = 4719^2 + 2276^2 .

It is a cyclic number.

It is not a de Polignac number, because 27449137 - 2¹¹ = 27447089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27449096 and 27449105.

It is not a weakly prime, because it can be changed into another prime (27449537) 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 as a sum of consecutive naturals, namely, 13724568 + 13724569.

It is an arithmetic number, because the mean of its divisors is an integer number (13724569).

Almost surely, 2^27449137 is an apocalyptic number.

It is an amenable number.

27449137 is a deficient number, since it is larger than the sum of its proper divisors (1).

27449137 is an equidigital number, since it uses as much as digits as its factorization.

27449137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 27449137 is about 5239.1923995975. The cubic root of 27449137 is about 301.6543308991.

It can be divided in two parts, 2744 and 9137, that added together give a square (11881 = 109²).

The spelling of 27449137 in words is "twenty-seven million, four hundred forty-nine thousand, one hundred thirty-seven".