27073997 has 2 divisors, whose sum is σ = 27073998. Its totient is φ = 27073996.

The previous prime is 27073939. The next prime is 27073999. The reversal of 27073997 is 79937072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 6832996 = 4499^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 27073997 - 2¹⁸ = 26811853 is a prime.

Together with 27073999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27073999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13536998 + 13536999.

It is an arithmetic number, because the mean of its divisors is an integer number (13536999).

Almost surely, 2^27073997 is an apocalyptic number.

It is an amenable number.

27073997 is a deficient number, since it is larger than the sum of its proper divisors (1).

27073997 is an equidigital number, since it uses as much as digits as its factorization.

27073997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 166698, while the sum is 44.

The square root of 27073997 is about 5203.2679154547. The cubic root of 27073997 is about 300.2738129751.

The spelling of 27073997 in words is "twenty-seven million, seventy-three thousand, nine hundred ninety-seven".