82686996 has 144 divisors (see below), whose sum is σ = 250967808. Its totient is φ = 22464000.

The previous prime is 82686991. The next prime is 82687039. The reversal of 82686996 is 69968628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82686991) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 547521 + ... + 547671.

It is an arithmetic number, because the mean of its divisors is an integer number (1742832).

Almost surely, 2^82686996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82686996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125483904).

82686996 is an abundant number, since it is smaller than the sum of its proper divisors (168280812).

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

82686996 is a wasteful number, since it uses less digits than its factorization.

82686996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 257 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 82686996 is about 9093.2390268815. The cubic root of 82686996 is about 435.6580448672.

The spelling of 82686996 in words is "eighty-two million, six hundred eighty-six thousand, nine hundred ninety-six".