83420212 has 12 divisors (see below), whose sum is σ = 146514340. Its totient is φ = 41558976.

The previous prime is 83420209. The next prime is 83420257. The reversal of 83420212 is 21202438.

It can be written as a sum of positive squares in 2 ways, for example, as 18714276 + 64705936 = 4326^2 + 8044^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36537 + ... + 38752.

Almost surely, 2^83420212 is an apocalyptic number.

It is an amenable number.

83420212 is a deficient number, since it is larger than the sum of its proper divisors (63094128).

83420212 is a wasteful number, since it uses less digits than its factorization.

83420212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75570 (or 75568 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 83420212 is about 9133.4665927018. The cubic root of 83420212 is about 436.9419706611.

The spelling of 83420212 in words is "eighty-three million, four hundred twenty thousand, two hundred twelve".