27996892 has 48 divisors (see below), whose sum is σ = 64689408. Its totient is φ = 10264320.

The previous prime is 27996883. The next prime is 27996893. The reversal of 27996892 is 29869972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27996893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563 + ... + 7909.

It is an arithmetic number, because the mean of its divisors is an integer number (1347696).

Almost surely, 2^27996892 is an apocalyptic number.

27996892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27996892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32344704).

27996892 is an abundant number, since it is smaller than the sum of its proper divisors (36692516).

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

27996892 is a wasteful number, since it uses less digits than its factorization.

27996892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386 (or 5384 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 27996892 is about 5291.2089355836. The cubic root of 27996892 is about 303.6476613926.

Subtracting 27996892 from its reverse (29869972), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 27996892 in words is "twenty-seven million, nine hundred ninety-six thousand, eight hundred ninety-two".