27664037 has 2 divisors, whose sum is σ = 27664038. Its totient is φ = 27664036.

The previous prime is 27664027. The next prime is 27664069. The reversal of 27664037 is 73046672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21242881 + 6421156 = 4609^2 + 2534^2 .

It is a cyclic number.

It is not a de Polignac number, because 27664037 - 2⁶ = 27663973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27663988 and 27664006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27664027) 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, 13832018 + 13832019.

It is an arithmetic number, because the mean of its divisors is an integer number (13832019).

Almost surely, 2^27664037 is an apocalyptic number.

It is an amenable number.

27664037 is a deficient number, since it is larger than the sum of its proper divisors (1).

27664037 is an equidigital number, since it uses as much as digits as its factorization.

27664037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 27664037 is about 5259.6613008824. The cubic root of 27664037 is about 302.4395052401.

The spelling of 27664037 in words is "twenty-seven million, six hundred sixty-four thousand, thirty-seven".