83868860 has 12 divisors (see below), whose sum is σ = 176124648. Its totient is φ = 33547536.

The previous prime is 83868823. The next prime is 83868887. The reversal of 83868860 is 6886838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2096702 + ... + 2096741.

It is an arithmetic number, because the mean of its divisors is an integer number (14677054).

Almost surely, 2^83868860 is an apocalyptic number.

It is an amenable number.

83868860 is an abundant number, since it is smaller than the sum of its proper divisors (92255788).

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

83868860 is a wasteful number, since it uses less digits than its factorization.

83868860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193452 (or 4193450 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 83868860 is about 9157.9943219026. The cubic root of 83868860 is about 437.7238864971.

The spelling of 83868860 in words is "eighty-three million, eight hundred sixty-eight thousand, eight hundred sixty".