83856858 has 8 divisors (see below), whose sum is σ = 167713728. Its totient is φ = 27952284.

The previous prime is 83856853. The next prime is 83856859. The reversal of 83856858 is 85865838.

It is a sphenic number, since it is the product of 3 distinct primes.

83856858 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 83856858.

It is not an unprimeable number, because it can be changed into a prime (83856853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6988066 + ... + 6988077.

It is an arithmetic number, because the mean of its divisors is an integer number (20964216).

Almost surely, 2^83856858 is an apocalyptic number.

83856858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

83856858 is a wasteful number, since it uses less digits than its factorization.

83856858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13976148.

The product of its digits is 1843200, while the sum is 51.

The square root of 83856858 is about 9157.3390239742. The cubic root of 83856858 is about 437.7030054346.

The spelling of 83856858 in words is "eighty-three million, eight hundred fifty-six thousand, eight hundred fifty-eight".