82506843 has 20 divisors (see below), whose sum is σ = 123919488. Its totient is φ = 54706320.

The previous prime is 82506829. The next prime is 82506857. The reversal of 82506843 is 34860528.

It is an interprime number because it is at equal distance from previous prime (82506829) and next prime (82506857).

It is a de Polignac number, because none of the positive numbers 2^k-82506843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82506798 and 82506807.

It is not an unprimeable number, because it can be changed into a prime (82506803) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12805 + ... + 18137.

Almost surely, 2^82506843 is an apocalyptic number.

82506843 is a deficient number, since it is larger than the sum of its proper divisors (41412645).

82506843 is a wasteful number, since it uses less digits than its factorization.

82506843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536 (or 5527 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 82506843 is about 9083.3277492338. The cubic root of 82506843 is about 435.3414204238.

The spelling of 82506843 in words is "eighty-two million, five hundred six thousand, eight hundred forty-three".