85403924 has 12 divisors (see below), whose sum is σ = 149526048. Its totient is φ = 42682200.

The previous prime is 85403909. The next prime is 85403959. The reversal of 85403924 is 42930458.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 9419 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (12460504).

Almost surely, 2^85403924 is an apocalyptic number.

It is an amenable number.

85403924 is a deficient number, since it is larger than the sum of its proper divisors (64122124).

85403924 is a wasteful number, since it uses less digits than its factorization.

85403924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9886 (or 9884 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 85403924 is about 9241.4243490925. The cubic root of 85403924 is about 440.3783316251.

The spelling of 85403924 in words is "eighty-five million, four hundred three thousand, nine hundred twenty-four".