27828863 has 8 divisors (see below), whose sum is σ = 29449200. Its totient is φ = 26224128.

The previous prime is 27828809. The next prime is 27828883. The reversal of 27828863 is 36882872.

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

It is a cyclic number.

It is not a de Polignac number, because 27828863 - 2⁶ = 27828799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128 + ... + 7461.

It is an arithmetic number, because the mean of its divisors is an integer number (3681150).

Almost surely, 2^27828863 is an apocalyptic number.

27828863 is a deficient number, since it is larger than the sum of its proper divisors (1620337).

27828863 is a wasteful number, since it uses less digits than its factorization.

27828863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801.

The product of its digits is 258048, while the sum is 44.

The square root of 27828863 is about 5275.3069105029. The cubic root of 27828863 is about 303.0389744621.

The spelling of 27828863 in words is "twenty-seven million, eight hundred twenty-eight thousand, eight hundred sixty-three".