27663013 has 24 divisors (see below), whose sum is σ = 33892352. Its totient is φ = 22099392.

The previous prime is 27663011. The next prime is 27663017. The reversal of 27663013 is 31036672.

It is not a de Polignac number, because 27663013 - 2¹ = 27663011 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27663011) 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, 217756 + ... + 217882.

Almost surely, 2^27663013 is an apocalyptic number.

It is an amenable number.

27663013 is a deficient number, since it is larger than the sum of its proper divisors (6229339).

27663013 is a wasteful number, since it uses less digits than its factorization.

27663013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 27663013 is about 5259.5639553104. The cubic root of 27663013 is about 302.4357735375.

Adding to 27663013 its reverse (31036672), we get a palindrome (58699685).

The spelling of 27663013 in words is "twenty-seven million, six hundred sixty-three thousand, thirteen".