27878468 has 12 divisors (see below), whose sum is σ = 49405440. Its totient is φ = 13762632.

The previous prime is 27878467. The next prime is 27878471. The reversal of 27878468 is 86487872.

It is not an unprimeable number, because it can be changed into a prime (27878467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43796 + ... + 44427.

It is an arithmetic number, because the mean of its divisors is an integer number (4117120).

Almost surely, 2^27878468 is an apocalyptic number.

It is an amenable number.

27878468 is a deficient number, since it is larger than the sum of its proper divisors (21526972).

27878468 is a wasteful number, since it uses less digits than its factorization.

27878468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88306 (or 88304 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 50.

The square root of 27878468 is about 5280.0064393900. The cubic root of 27878468 is about 303.2189234296.

The spelling of 27878468 in words is "twenty-seven million, eight hundred seventy-eight thousand, four hundred sixty-eight".