27040049 has 2 divisors, whose sum is σ = 27040050. Its totient is φ = 27040048.

The previous prime is 27040031. The next prime is 27040051. The reversal of 27040049 is 94004072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 49 = 5200^2 + 7^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27040049 is a prime.

Together with 27040051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27040099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13520024 + 13520025.

It is an arithmetic number, because the mean of its divisors is an integer number (13520025).

Almost surely, 2^27040049 is an apocalyptic number.

It is an amenable number.

27040049 is a deficient number, since it is larger than the sum of its proper divisors (1).

27040049 is an equidigital number, since it uses as much as digits as its factorization.

27040049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 27040049 is about 5200.0047115363. The cubic root of 27040049 is about 300.1482563511.

It can be divided in two parts, 270400 and 49, that multiplied together give a square (13249600 = 3640²).

The spelling of 27040049 in words is "twenty-seven million, forty thousand, forty-nine".