27121892 has 36 divisors (see below), whose sum is σ = 58126320. Its totient is φ = 11010384.

The previous prime is 27121891. The next prime is 27121903. The reversal of 27121892 is 29812172.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27121891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (1614620).

Almost surely, 2^27121892 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 27121892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29063160).

27121892 is an abundant number, since it is smaller than the sum of its proper divisors (31004428).

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

27121892 is a wasteful number, since it uses less digits than its factorization.

27121892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320 (or 7311 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 27121892 is about 5207.8682779041. The cubic root of 27121892 is about 300.4507741880.

The spelling of 27121892 in words is "twenty-seven million, one hundred twenty-one thousand, eight hundred ninety-two".