27803412 has 240 divisors, whose sum is σ = 95622912. Its totient is φ = 6842880.

The previous prime is 27803407. The next prime is 27803443. The reversal of 27803412 is 21430872.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 678112 + ... + 678152.

Almost surely, 2^27803412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27803412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47811456).

27803412 is an abundant number, since it is smaller than the sum of its proper divisors (67819500).

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

27803412 is a wasteful number, since it uses less digits than its factorization.

27803412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 27803412 is about 5272.8940820009. The cubic root of 27803412 is about 302.9465644422.

The spelling of 27803412 in words is "twenty-seven million, eight hundred three thousand, four hundred twelve".