27798963 has 8 divisors (see below), whose sum is σ = 37118400. Its totient is φ = 18506088.

The previous prime is 27798931. The next prime is 27798989. The reversal of 27798963 is 36989772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27798963 - 2⁵ = 27798931 is a prime.

It is a super-3 number, since 3×27798963³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (27798913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4053 + ... + 8486.

It is an arithmetic number, because the mean of its divisors is an integer number (4639800).

Almost surely, 2^27798963 is an apocalyptic number.

27798963 is a deficient number, since it is larger than the sum of its proper divisors (9319437).

27798963 is a wasteful number, since it uses less digits than its factorization.

27798963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13281.

The product of its digits is 1143072, while the sum is 51.

The square root of 27798963 is about 5272.4721905383. The cubic root of 27798963 is about 302.9304047809.

The spelling of 27798963 in words is "twenty-seven million, seven hundred ninety-eight thousand, nine hundred sixty-three".