83985212 has 6 divisors (see below), whose sum is σ = 146974128. Its totient is φ = 41992604.

The previous prime is 83985203. The next prime is 83985229. The reversal of 83985212 is 21258938.

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, 10498148 + ... + 10498155.

It is an arithmetic number, because the mean of its divisors is an integer number (24495688).

Almost surely, 2^83985212 is an apocalyptic number.

It is an amenable number.

83985212 is a deficient number, since it is larger than the sum of its proper divisors (62988916).

83985212 is a wasteful number, since it uses less digits than its factorization.

83985212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20996307 (or 20996305 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 83985212 is about 9164.3446028617. The cubic root of 83985212 is about 437.9262123499.

The spelling of 83985212 in words is "eighty-three million, nine hundred eighty-five thousand, two hundred twelve".