85569804 has 48 divisors (see below), whose sum is σ = 222566400. Its totient is φ = 28430928.

The previous prime is 85569793. The next prime is 85569817. The reversal of 85569804 is 40896558.

85569804 is a `hidden beast` number, since 8 + 5 + 569 + 80 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 85569804.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37669 + ... + 39875.

It is an arithmetic number, because the mean of its divisors is an integer number (4636800).

Almost surely, 2^85569804 is an apocalyptic number.

It is an amenable number.

85569804 is an abundant number, since it is smaller than the sum of its proper divisors (136996596).

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

85569804 is a wasteful number, since it uses less digits than its factorization.

85569804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579 (or 2571 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 85569804 is about 9250.3948023855. The cubic root of 85569804 is about 440.6632627705.

The spelling of 85569804 in words is "eighty-five million, five hundred sixty-nine thousand, eight hundred four".