82409768 has 24 divisors (see below), whose sum is σ = 179746650. Its totient is φ = 35318304.

The previous prime is 82409737. The next prime is 82409779. The reversal of 82409768 is 86790428.

It can be written as a sum of positive squares in only one way, i.e., 82047364 + 362404 = 9058^2 + 602^2 .

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 5 ways as a sum of consecutive naturals, for example, 104723 + ... + 105506.

Almost surely, 2^82409768 is an apocalyptic number.

It is an amenable number.

82409768 is an abundant number, since it is smaller than the sum of its proper divisors (97336882).

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

82409768 is a wasteful number, since it uses less digits than its factorization.

82409768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210249 (or 210238 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 82409768 is about 9077.9825952686. The cubic root of 82409768 is about 435.1706170014.

The spelling of 82409768 in words is "eighty-two million, four hundred nine thousand, seven hundred sixty-eight".