27871480 has 192 divisors, whose sum is σ = 84326400. Its totient is φ = 8087040.

The previous prime is 27871457. The next prime is 27871549. The reversal of 27871480 is 8417872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 899065 + ... + 899095.

It is an arithmetic number, because the mean of its divisors is an integer number (439200).

Almost surely, 2^27871480 is an apocalyptic number.

27871480 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 27871480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42163200).

27871480 is an abundant number, since it is smaller than the sum of its proper divisors (56454920).

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

27871480 is a wasteful number, since it uses less digits than its factorization.

27871480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 27871480 is about 5279.3446562997. The cubic root of 27871480 is about 303.1935864216.

The spelling of 27871480 in words is "twenty-seven million, eight hundred seventy-one thousand, four hundred eighty".