82543236 has 12 divisors (see below), whose sum is σ = 192600912. Its totient is φ = 27514408.

The previous prime is 82543213. The next prime is 82543243. The reversal of 82543236 is 63234528.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 82543197 and 82543206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3439290 + ... + 3439313.

It is an arithmetic number, because the mean of its divisors is an integer number (16050076).

Almost surely, 2^82543236 is an apocalyptic number.

It is an amenable number.

82543236 is an abundant number, since it is smaller than the sum of its proper divisors (110057676).

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

82543236 is a wasteful number, since it uses less digits than its factorization.

82543236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878610 (or 6878608 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 82543236 is about 9085.3308140100. The cubic root of 82543236 is about 435.4054193636.

The spelling of 82543236 in words is "eighty-two million, five hundred forty-three thousand, two hundred thirty-six".