82670838 has 32 divisors (see below), whose sum is σ = 171279360. Its totient is φ = 26584320.

The previous prime is 82670807. The next prime is 82670857. The reversal of 82670838 is 83807628.

It is a self number, because there is not a number n which added to its sum of digits gives 82670838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17958 + ... + 22086.

It is an arithmetic number, because the mean of its divisors is an integer number (5352480).

Almost surely, 2^82670838 is an apocalyptic number.

82670838 is an abundant number, since it is smaller than the sum of its proper divisors (88608522).

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

82670838 is a wasteful number, since it uses less digits than its factorization.

82670838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 82670838 is about 9092.3505211799. The cubic root of 82670838 is about 435.6296654702.

The spelling of 82670838 in words is "eighty-two million, six hundred seventy thousand, eight hundred thirty-eight".