82985412 has 12 divisors (see below), whose sum is σ = 193632656. Its totient is φ = 27661800.

The previous prime is 82985411. The next prime is 82985417. The reversal of 82985412 is 21458928.

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

It is not an unprimeable number, because it can be changed into a prime (82985411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3457714 + ... + 3457737.

Almost surely, 2^82985412 is an apocalyptic number.

It is an amenable number.

82985412 is an abundant number, since it is smaller than the sum of its proper divisors (110647244).

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

82985412 is a wasteful number, since it uses less digits than its factorization.

82985412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915458 (or 6915456 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 82985412 is about 9109.6329234498. The cubic root of 82985412 is about 436.1815098702.

The spelling of 82985412 in words is "eighty-two million, nine hundred eighty-five thousand, four hundred twelve".