27696285 has 12 divisors (see below), whose sum is σ = 48006972. Its totient is φ = 14771328.

The previous prime is 27696283. The next prime is 27696289. The reversal of 27696285 is 58269672.

It can be written as a sum of positive squares in 2 ways, for example, as 8982009 + 18714276 = 2997^2 + 4326^2 .

It is not a de Polignac number, because 27696285 - 2¹ = 27696283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 615473 = 27696285 / (2 + 7 + 6 + 9 + 6 + 2 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 27696285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27696283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307692 + ... + 307781.

It is an arithmetic number, because the mean of its divisors is an integer number (4000581).

Almost surely, 2^27696285 is an apocalyptic number.

It is an amenable number.

27696285 is a deficient number, since it is larger than the sum of its proper divisors (20310687).

27696285 is a wasteful number, since it uses less digits than its factorization.

27696285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615484 (or 615481 counting only the distinct ones).

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

The square root of 27696285 is about 5262.7260046482. The cubic root of 27696285 is about 302.5569776333.

The spelling of 27696285 in words is "twenty-seven million, six hundred ninety-six thousand, two hundred eighty-five".