85513884 has 12 divisors (see below), whose sum is σ = 199532424. Its totient is φ = 28504624.

The previous prime is 85513873. The next prime is 85513907. The reversal of 85513884 is 48831558.

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

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, 3563067 + ... + 3563090.

It is an arithmetic number, because the mean of its divisors is an integer number (16627702).

Almost surely, 2^85513884 is an apocalyptic number.

It is an amenable number.

85513884 is an abundant number, since it is smaller than the sum of its proper divisors (114018540).

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

85513884 is a wasteful number, since it uses less digits than its factorization.

85513884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126164 (or 7126162 counting only the distinct ones).

The product of its digits is 153600, while the sum is 42.

The square root of 85513884 is about 9247.3717347147. The cubic root of 85513884 is about 440.5672504769.

The spelling of 85513884 in words is "eighty-five million, five hundred thirteen thousand, eight hundred eighty-four".