85990432 has 24 divisors (see below), whose sum is σ = 184684752. Its totient is φ = 39086400.

The previous prime is 85990397. The next prime is 85990439. The reversal of 85990432 is 23409958.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85990439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121794 + ... + 122497.

It is an arithmetic number, because the mean of its divisors is an integer number (7695198).

Almost surely, 2^85990432 is an apocalyptic number.

It is an amenable number.

85990432 is an abundant number, since it is smaller than the sum of its proper divisors (98694320).

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

85990432 is a wasteful number, since it uses less digits than its factorization.

85990432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244312 (or 244304 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 85990432 is about 9273.1026091595. The cubic root of 85990432 is about 441.3841261799.

The spelling of 85990432 in words is "eighty-five million, nine hundred ninety thousand, four hundred thirty-two".