27878496 has 48 divisors (see below), whose sum is σ = 73710000. Its totient is φ = 9225728.

The previous prime is 27878471. The next prime is 27878509. The reversal of 27878496 is 69487872.

It is a tau number, because it is divible by the number of its divisors (48).

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, 13330 + ... + 15278.

It is an arithmetic number, because the mean of its divisors is an integer number (1535625).

Almost surely, 2^27878496 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 27878496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36855000).

27878496 is an abundant number, since it is smaller than the sum of its proper divisors (45831504).

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

27878496 is a wasteful number, since it uses less digits than its factorization.

27878496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2103 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 27878496 is about 5280.0090909013. The cubic root of 27878496 is about 303.2190249431.

The spelling of 27878496 in words is "twenty-seven million, eight hundred seventy-eight thousand, four hundred ninety-six".