83919836 has 48 divisors (see below), whose sum is σ = 197191680. Its totient is φ = 30179520.

The previous prime is 83919817. The next prime is 83919839. The reversal of 83919836 is 63891938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83919839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6476 + ... + 14483.

It is an arithmetic number, because the mean of its divisors is an integer number (4108160).

Almost surely, 2^83919836 is an apocalyptic number.

It is an amenable number.

83919836 is an abundant number, since it is smaller than the sum of its proper divisors (113271844).

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

83919836 is a wasteful number, since it uses less digits than its factorization.

83919836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20994 (or 20992 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 83919836 is about 9160.7770412777. Note that the first 3 decimals coincide. The cubic root of 83919836 is about 437.8125522769.

It can be divided in two parts, 83 and 919836, that added together give a palindrome (919919).

The spelling of 83919836 in words is "eighty-three million, nine hundred nineteen thousand, eight hundred thirty-six".