27804930 has 64 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 6961856.

The previous prime is 27804901. The next prime is 27804937. The reversal of 27804930 is 3940872.

It is a super-2 number, since 2×27804930² = 1546228264609800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27804891 and 27804900.

It is not an unprimeable number, because it can be changed into a prime (27804937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40369 + ... + 41051.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 2^27804930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27804930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35458560).

27804930 is an abundant number, since it is smaller than the sum of its proper divisors (43112190).

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

27804930 is a wasteful number, since it uses less digits than its factorization.

27804930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 27804930 is about 5273.0380237582. The cubic root of 27804930 is about 302.9520777286.

The spelling of 27804930 in words is "twenty-seven million, eight hundred four thousand, nine hundred thirty".