81827334 has 28 divisors (see below), whose sum is σ = 184030596. Its totient is φ = 27275292.

The previous prime is 81827327. The next prime is 81827351. The reversal of 81827334 is 43372818.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 26604 + ... + 29519.

Almost surely, 2^81827334 is an apocalyptic number.

81827334 is an abundant number, since it is smaller than the sum of its proper divisors (102203262).

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

81827334 is an equidigital number, since it uses as much as digits as its factorization.

81827334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56143 (or 56128 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 81827334 is about 9045.8462290711. The cubic root of 81827334 is about 434.1429976098.

The spelling of 81827334 in words is "eighty-one million, eight hundred twenty-seven thousand, three hundred thirty-four".