83685612 has 12 divisors (see below), whose sum is σ = 195266456. Its totient is φ = 27895200.

The previous prime is 83685607. The next prime is 83685629. The reversal of 83685612 is 21658638.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3486889 + ... + 3486912.

Almost surely, 2^83685612 is an apocalyptic number.

It is an amenable number.

83685612 is an abundant number, since it is smaller than the sum of its proper divisors (111580844).

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

83685612 is a wasteful number, since it uses less digits than its factorization.

83685612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973808 (or 6973806 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 83685612 is about 9147.9840402135. The cubic root of 83685612 is about 437.4048546295.

The spelling of 83685612 in words is "eighty-three million, six hundred eighty-five thousand, six hundred twelve".