27963872 has 24 divisors (see below), whose sum is σ = 56228256. Its totient is φ = 13683712.

The previous prime is 27963863. The next prime is 27963907. The reversal of 27963872 is 27836972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7793 + ... + 10800.

It is an arithmetic number, because the mean of its divisors is an integer number (2342844).

Almost surely, 2^27963872 is an apocalyptic number.

It is an amenable number.

27963872 is an abundant number, since it is smaller than the sum of its proper divisors (28264384).

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

27963872 is a wasteful number, since it uses less digits than its factorization.

27963872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18650 (or 18642 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 27963872 is about 5288.0877451116. The cubic root of 27963872 is about 303.5282387302.

The spelling of 27963872 in words is "twenty-seven million, nine hundred sixty-three thousand, eight hundred seventy-two".