85208404 has 12 divisors (see below), whose sum is σ = 149200128. Its totient is φ = 42579800.

The previous prime is 85208401. The next prime is 85208411. The reversal of 85208404 is 40480258.

It is a super-4 number, since 4×85208404⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85208401) 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, 3399 + ... + 13489.

It is an arithmetic number, because the mean of its divisors is an integer number (12433344).

Almost surely, 2^85208404 is an apocalyptic number.

It is an amenable number.

85208404 is a deficient number, since it is larger than the sum of its proper divisors (63991724).

85208404 is a wasteful number, since it uses less digits than its factorization.

85208404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12206 (or 12204 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 85208404 is about 9230.8398317813. The cubic root of 85208404 is about 440.0420138945.

The spelling of 85208404 in words is "eighty-five million, two hundred eight thousand, four hundred four".