27907853 has 2 divisors, whose sum is σ = 27907854. Its totient is φ = 27907852.

The previous prime is 27907813. The next prime is 27907861. The reversal of 27907853 is 35870972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26853124 + 1054729 = 5182^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 27907853 - 2¹⁶ = 27842317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27907853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27907813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13953926 + 13953927.

It is an arithmetic number, because the mean of its divisors is an integer number (13953927).

Almost surely, 2^27907853 is an apocalyptic number.

It is an amenable number.

27907853 is a deficient number, since it is larger than the sum of its proper divisors (1).

27907853 is an equidigital number, since it uses as much as digits as its factorization.

27907853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 27907853 is about 5282.7883735770. The cubic root of 27907853 is about 303.3254209049.

The spelling of 27907853 in words is "twenty-seven million, nine hundred seven thousand, eight hundred fifty-three".