85385424 has 40 divisors (see below), whose sum is σ = 233556480. Its totient is φ = 26787328.

The previous prime is 85385389. The next prime is 85385429. The reversal of 85385424 is 42458358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85385429) 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 7 ways as a sum of consecutive naturals, for example, 51504 + ... + 53135.

It is an arithmetic number, because the mean of its divisors is an integer number (5838912).

Almost surely, 2^85385424 is an apocalyptic number.

It is an amenable number.

85385424 is an abundant number, since it is smaller than the sum of its proper divisors (148171056).

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

85385424 is a wasteful number, since it uses less digits than its factorization.

85385424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104667 (or 104661 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 85385424 is about 9240.4233669243. The cubic root of 85385424 is about 440.3465314178.

The spelling of 85385424 in words is "eighty-five million, three hundred eighty-five thousand, four hundred twenty-four".