85117432 has 16 divisors (see below), whose sum is σ = 160853760. Its totient is φ = 42223104.

The previous prime is 85117303. The next prime is 85117433. The reversal of 85117432 is 23471158.

It is a junction number, because it is equal to n+sod(n) for n = 85117394 and 85117403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85117433) 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 3 ways as a sum of consecutive naturals, for example, 40873 + ... + 42904.

It is an arithmetic number, because the mean of its divisors is an integer number (10053360).

Almost surely, 2^85117432 is an apocalyptic number.

It is an amenable number.

85117432 is a deficient number, since it is larger than the sum of its proper divisors (75736328).

85117432 is a wasteful number, since it uses less digits than its factorization.

85117432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83910 (or 83906 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 85117432 is about 9225.9109035368. The cubic root of 85117432 is about 439.8853558064.

The spelling of 85117432 in words is "eighty-five million, one hundred seventeen thousand, four hundred thirty-two".