81594096 has 20 divisors (see below), whose sum is σ = 210784872. Its totient is φ = 27198016.

The previous prime is 81594089. The next prime is 81594119. The reversal of 81594096 is 69049518.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849891 + ... + 849986.

Almost surely, 2^81594096 is an apocalyptic number.

It is an amenable number.

81594096 is an abundant number, since it is smaller than the sum of its proper divisors (129190776).

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

81594096 is a wasteful number, since it uses less digits than its factorization.

81594096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699888 (or 1699882 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 81594096 is about 9032.9450347049. The cubic root of 81594096 is about 433.7301159956.

The spelling of 81594096 in words is "eighty-one million, five hundred ninety-four thousand, ninety-six".