27830904 has 32 divisors (see below), whose sum is σ = 73671120. Its totient is φ = 8731136.

The previous prime is 27830903. The next prime is 27830911. The reversal of 27830904 is 40903872.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27830903) 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, 33699 + ... + 34514.

Almost surely, 2^27830904 is an apocalyptic number.

27830904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27830904 is an abundant number, since it is smaller than the sum of its proper divisors (45840216).

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

27830904 is a wasteful number, since it uses less digits than its factorization.

27830904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68239 (or 68235 counting only the distinct ones).

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

The square root of 27830904 is about 5275.5003554165. The cubic root of 27830904 is about 303.0463826870.

The spelling of 27830904 in words is "twenty-seven million, eight hundred thirty thousand, nine hundred four".