27828330 has 64 divisors (see below), whose sum is σ = 68923008. Its totient is φ = 7188480.

The previous prime is 27828301. The next prime is 27828341. The reversal of 27828330 is 3382872.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27828291 and 27828300.

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, 212365 + ... + 212495.

It is an arithmetic number, because the mean of its divisors is an integer number (1076922).

Almost surely, 2^27828330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27828330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34461504).

27828330 is an abundant number, since it is smaller than the sum of its proper divisors (41094678).

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

27828330 is a wasteful number, since it uses less digits than its factorization.

27828330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 27828330 is about 5275.2563918733. The cubic root of 27828330 is about 303.0370397704.

The spelling of 27828330 in words is "twenty-seven million, eight hundred twenty-eight thousand, three hundred thirty".