27940853 has 2 divisors, whose sum is σ = 27940854. Its totient is φ = 27940852.

The previous prime is 27940777. The next prime is 27940879. The reversal of 27940853 is 35804972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15816529 + 12124324 = 3977^2 + 3482^2 .

It is a cyclic number.

It is not a de Polignac number, because 27940853 - 2¹² = 27936757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27900853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13970426 + 13970427.

It is an arithmetic number, because the mean of its divisors is an integer number (13970427).

Almost surely, 2^27940853 is an apocalyptic number.

It is an amenable number.

27940853 is a deficient number, since it is larger than the sum of its proper divisors (1).

27940853 is an equidigital number, since it uses as much as digits as its factorization.

27940853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 27940853 is about 5285.9108013662. The cubic root of 27940853 is about 303.4449308280. Note that the first 3 decimals are identical.

The spelling of 27940853 in words is "twenty-seven million, nine hundred forty thousand, eight hundred fifty-three".