27383985 has 24 divisors (see below), whose sum is σ = 47721960. Its totient is φ = 14525952.

The previous prime is 27383977. The next prime is 27383989. The reversal of 27383985 is 58938372.

It can be written as a sum of positive squares in 4 ways, for example, as 16573041 + 10810944 = 4071^2 + 3288^2 .

It is not a de Polignac number, because 27383985 - 2³ = 27383977 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 27383985.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27383989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7321 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (1988415).

Almost surely, 2^27383985 is an apocalyptic number.

It is an amenable number.

27383985 is a deficient number, since it is larger than the sum of its proper divisors (20337975).

27383985 is a wasteful number, since it uses less digits than its factorization.

27383985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3294 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 27383985 is about 5232.9709534833. The cubic root of 27383985 is about 301.4154775737.

The spelling of 27383985 in words is "twenty-seven million, three hundred eighty-three thousand, nine hundred eighty-five".