85039884 has 36 divisors (see below), whose sum is σ = 218176504. Its totient is φ = 27922752.

The previous prime is 85039883. The next prime is 85039937. The reversal of 85039884 is 48893058.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85039883) 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 11 ways as a sum of consecutive naturals, for example, 15217 + ... + 20040.

Almost surely, 2^85039884 is an apocalyptic number.

It is an amenable number.

85039884 is an abundant number, since it is smaller than the sum of its proper divisors (133136620).

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

85039884 is a wasteful number, since it uses less digits than its factorization.

85039884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35334 (or 35329 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 85039884 is about 9221.7072172131. The cubic root of 85039884 is about 439.7517263270.

The spelling of 85039884 in words is "eighty-five million, thirty-nine thousand, eight hundred eighty-four".