27868830 has 64 divisors (see below), whose sum is σ = 73958400. Its totient is φ = 6664320.

The previous prime is 27868787. The next prime is 27868843. The reversal of 27868830 is 3886872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25536 + ... + 26604.

It is an arithmetic number, because the mean of its divisors is an integer number (1155600).

Almost surely, 2^27868830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27868830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36979200).

27868830 is an abundant number, since it is smaller than the sum of its proper divisors (46089570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27868830 is a wasteful number, since it uses less digits than its factorization.

27868830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 27868830 is about 5279.0936722131. The cubic root of 27868830 is about 303.1839769753.

The spelling of 27868830 in words is "twenty-seven million, eight hundred sixty-eight thousand, eight hundred thirty".