27847040 has 64 divisors (see below), whose sum is σ = 71714160. Its totient is φ = 10278912.

The previous prime is 27847033. The next prime is 27847067. The reversal of 27847040 is 4074872.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 27846988 and 27847006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6647 + ... + 9993.

Almost surely, 2^27847040 is an apocalyptic number.

27847040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27847040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35857080).

27847040 is an abundant number, since it is smaller than the sum of its proper divisors (43867120).

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

27847040 is a wasteful number, since it uses less digits than its factorization.

27847040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 27847040 is about 5277.0294674182. The cubic root of 27847040 is about 303.1049388360.

The spelling of 27847040 in words is "twenty-seven million, eight hundred forty-seven thousand, forty".