27896538 has 16 divisors (see below), whose sum is σ = 55851840. Its totient is φ = 9289056.

The previous prime is 27896537. The next prime is 27896543. The reversal of 27896538 is 83569872.

It is not an unprimeable number, because it can be changed into a prime (27896537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5931 + ... + 9537.

It is an arithmetic number, because the mean of its divisors is an integer number (3490740).

Almost surely, 2^27896538 is an apocalyptic number.

27896538 is an abundant number, since it is smaller than the sum of its proper divisors (27955302).

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

27896538 is a wasteful number, since it uses less digits than its factorization.

27896538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901.

The product of its digits is 725760, while the sum is 48.

The square root of 27896538 is about 5281.7173343525. The cubic root of 27896538 is about 303.2844217987.

The spelling of 27896538 in words is "twenty-seven million, eight hundred ninety-six thousand, five hundred thirty-eight".