82684646 has 16 divisors (see below), whose sum is σ = 137522448. Its totient is φ = 36967200.

The previous prime is 82684631. The next prime is 82684669. The reversal of 82684646 is 64648628.

It is a junction number, because it is equal to n+sod(n) for n = 82684597 and 82684606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29465 + ... + 32148.

It is an arithmetic number, because the mean of its divisors is an integer number (8595153).

Almost surely, 2^82684646 is an apocalyptic number.

82684646 is a deficient number, since it is larger than the sum of its proper divisors (54837802).

82684646 is a wasteful number, since it uses less digits than its factorization.

82684646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61687.

The product of its digits is 442368, while the sum is 44.

The square root of 82684646 is about 9093.1098090807. The cubic root of 82684646 is about 435.6539176317.

The spelling of 82684646 in words is "eighty-two million, six hundred eighty-four thousand, six hundred forty-six".