83505858 has 16 divisors (see below), whose sum is σ = 168134400. Its totient is φ = 27648176.

The previous prime is 83505857. The next prime is 83505859. The reversal of 83505858 is 85850538.

It is an interprime number because it is at equal distance from previous prime (83505857) and next prime (83505859).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83505857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45810 + ... + 47597.

It is an arithmetic number, because the mean of its divisors is an integer number (10508400).

Almost surely, 2^83505858 is an apocalyptic number.

83505858 is an abundant number, since it is smaller than the sum of its proper divisors (84628542).

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

83505858 is a wasteful number, since it uses less digits than its factorization.

83505858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93561.

The product of its (nonzero) digits is 192000, while the sum is 42.

The square root of 83505858 is about 9138.1539711257. The cubic root of 83505858 is about 437.0914529487.

The spelling of 83505858 in words is "eighty-three million, five hundred five thousand, eight hundred fifty-eight".