27887998 has 8 divisors (see below), whose sum is σ = 42082992. Its totient is φ = 13860336.

The previous prime is 27887947. The next prime is 27887999. The reversal of 27887998 is 89978872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27887999) 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, 41415 + ... + 42082.

It is an arithmetic number, because the mean of its divisors is an integer number (5260374).

Almost surely, 2^27887998 is an apocalyptic number.

27887998 is a deficient number, since it is larger than the sum of its proper divisors (14194994).

27887998 is a wasteful number, since it uses less digits than its factorization.

27887998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83666.

The product of its digits is 4064256, while the sum is 58.

The square root of 27887998 is about 5280.9088232993. The cubic root of 27887998 is about 303.2534703678.

The spelling of 27887998 in words is "twenty-seven million, eight hundred eighty-seven thousand, nine hundred ninety-eight".