82859910 has 32 divisors (see below), whose sum is σ = 227273472. Its totient is φ = 18939360.

The previous prime is 82859863. The next prime is 82859923. The reversal of 82859910 is 1995828.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 197076 + ... + 197495.

It is an arithmetic number, because the mean of its divisors is an integer number (7102296).

Almost surely, 2^82859910 is an apocalyptic number.

82859910 is an abundant number, since it is smaller than the sum of its proper divisors (144413562).

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

82859910 is a wasteful number, since it uses less digits than its factorization.

82859910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394588.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 82859910 is about 9102.7418946161. The cubic root of 82859910 is about 435.9615142923.

The spelling of 82859910 in words is "eighty-two million, eight hundred fifty-nine thousand, nine hundred ten".