83709212 has 24 divisors (see below), whose sum is σ = 154635600. Its totient is φ = 39540096.

The previous prime is 83709191. The next prime is 83709257. The reversal of 83709212 is 21290738.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29738 + ... + 32430.

It is an arithmetic number, because the mean of its divisors is an integer number (6443150).

Almost surely, 2^83709212 is an apocalyptic number.

It is an amenable number.

83709212 is a deficient number, since it is larger than the sum of its proper divisors (70926388).

83709212 is a wasteful number, since it uses less digits than its factorization.

83709212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 83709212 is about 9149.2738509676. The cubic root of 83709212 is about 437.4459679667.

The spelling of 83709212 in words is "eighty-three million, seven hundred nine thousand, two hundred twelve".