85434825 has 48 divisors (see below), whose sum is σ = 162239616. Its totient is φ = 38860800.

The previous prime is 85434823. The next prime is 85434827. The reversal of 85434825 is 52843458.

It is an interprime number because it is at equal distance from previous prime (85434823) and next prime (85434827).

It is not a de Polignac number, because 85434825 - 2¹ = 85434823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85434823) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 185095 + ... + 185555.

It is an arithmetic number, because the mean of its divisors is an integer number (3379992).

Almost surely, 2^85434825 is an apocalyptic number.

It is an amenable number.

85434825 is a deficient number, since it is larger than the sum of its proper divisors (76804791).

85434825 is a wasteful number, since it uses less digits than its factorization.

85434825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 829 counting only the distinct ones).

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

The square root of 85434825 is about 9243.0960722044. The cubic root of 85434825 is about 440.4314380449.

The spelling of 85434825 in words is "eighty-five million, four hundred thirty-four thousand, eight hundred twenty-five".