85829812 has 12 divisors (see below), whose sum is σ = 150583300. Its totient is φ = 42806016.

The previous prime is 85829791. The next prime is 85829819. The reversal of 85829812 is 21892858.

It can be written as a sum of positive squares in 2 ways, for example, as 74580496 + 11249316 = 8636^2 + 3354^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85829819) by changing a digit.

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, 25437 + ... + 28612.

Almost surely, 2^85829812 is an apocalyptic number.

It is an amenable number.

85829812 is a deficient number, since it is larger than the sum of its proper divisors (64753488).

85829812 is a wasteful number, since it uses less digits than its factorization.

85829812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54450 (or 54448 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 85829812 is about 9264.4380293680. The cubic root of 85829812 is about 441.1091370375.

The spelling of 85829812 in words is "eighty-five million, eight hundred twenty-nine thousand, eight hundred twelve".