83766812 has 6 divisors (see below), whose sum is σ = 146591928. Its totient is φ = 41883404.

The previous prime is 83766799. The next prime is 83766829. The reversal of 83766812 is 21866738.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 83766812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10470848 + ... + 10470855.

It is an arithmetic number, because the mean of its divisors is an integer number (24431988).

Almost surely, 2^83766812 is an apocalyptic number.

It is an amenable number.

83766812 is a deficient number, since it is larger than the sum of its proper divisors (62825116).

83766812 is a wasteful number, since it uses less digits than its factorization.

83766812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20941707 (or 20941705 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 83766812 is about 9152.4211004521. The cubic root of 83766812 is about 437.5462799477.

The spelling of 83766812 in words is "eighty-three million, seven hundred sixty-six thousand, eight hundred twelve".