82623856 has 80 divisors (see below), whose sum is σ = 197487360. Its totient is φ = 32693760.

The previous prime is 82623851. The next prime is 82623857. The reversal of 82623856 is 65832628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82623851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86775 + ... + 87721.

It is an arithmetic number, because the mean of its divisors is an integer number (2468592).

Almost surely, 2^82623856 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 82623856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98743680).

82623856 is an abundant number, since it is smaller than the sum of its proper divisors (114863504).

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

82623856 is a wasteful number, since it uses less digits than its factorization.

82623856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1016 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 82623856 is about 9089.7665536580. The cubic root of 82623856 is about 435.5471267670.

The spelling of 82623856 in words is "eighty-two million, six hundred twenty-three thousand, eight hundred fifty-six".