27000973 has 2 divisors, whose sum is σ = 27000974. Its totient is φ = 27000972.

The previous prime is 27000971. The next prime is 27000989. The reversal of 27000973 is 37900072.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21178404 + 5822569 = 4602^2 + 2413^2 .

It is a cyclic number.

It is not a de Polignac number, because 27000973 - 2¹ = 27000971 is a prime.

Together with 27000971, it forms a pair of twin primes.

It is equal to p_1683127 and since 27000973 and 1683127 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27000971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13500486 + 13500487.

It is an arithmetic number, because the mean of its divisors is an integer number (13500487).

Almost surely, 2^27000973 is an apocalyptic number.

It is an amenable number.

27000973 is a deficient number, since it is larger than the sum of its proper divisors (1).

27000973 is an equidigital number, since it uses as much as digits as its factorization.

27000973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 27000973 is about 5196.2460488318. The cubic root of 27000973 is about 300.0036036604.

The spelling of 27000973 in words is "twenty-seven million, nine hundred seventy-three", and thus it is an aban number.