82156384 has 12 divisors (see below), whose sum is σ = 161745444. Its totient is φ = 41078176.

The previous prime is 82156369. The next prime is 82156397. The reversal of 82156384 is 48365128.

It is a happy number.

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 as a sum of consecutive naturals, namely, 1283662 + ... + 1283725.

It is an arithmetic number, because the mean of its divisors is an integer number (13478787).

Almost surely, 2^82156384 is an apocalyptic number.

It is an amenable number.

82156384 is a deficient number, since it is larger than the sum of its proper divisors (79589060).

82156384 is a wasteful number, since it uses less digits than its factorization.

82156384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567397 (or 2567389 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 82156384 is about 9064.0158870117. The cubic root of 82156384 is about 434.7241550587.

The spelling of 82156384 in words is "eighty-two million, one hundred fifty-six thousand, three hundred eighty-four".