27945037 has 2 divisors, whose sum is σ = 27945038. Its totient is φ = 27945036.

The previous prime is 27945031. The next prime is 27945053. The reversal of 27945037 is 73054972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19616041 + 8328996 = 4429^2 + 2886^2 .

It is a cyclic number.

It is not a de Polignac number, because 27945037 - 2⁷ = 27944909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27944987 and 27945005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27945031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13972518 + 13972519.

It is an arithmetic number, because the mean of its divisors is an integer number (13972519).

Almost surely, 2^27945037 is an apocalyptic number.

It is an amenable number.

27945037 is a deficient number, since it is larger than the sum of its proper divisors (1).

27945037 is an equidigital number, since it uses as much as digits as its factorization.

27945037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 27945037 is about 5286.3065556209. The cubic root of 27945037 is about 303.4600765147.

The spelling of 27945037 in words is "twenty-seven million, nine hundred forty-five thousand, thirty-seven".