85989180 has 48 divisors (see below), whose sum is σ = 251241984. Its totient is φ = 21933120.

The previous prime is 85989173. The next prime is 85989181. The reversal of 85989180 is 8198958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85989181) 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 15 ways as a sum of consecutive naturals, for example, 29776 + ... + 32535.

It is an arithmetic number, because the mean of its divisors is an integer number (5234208).

Almost surely, 2^85989180 is an apocalyptic number.

It is an amenable number.

85989180 is an abundant number, since it is smaller than the sum of its proper divisors (165252804).

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

85989180 is a wasteful number, since it uses less digits than its factorization.

85989180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62346 (or 62344 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 85989180 is about 9273.0351018423. The cubic root of 85989180 is about 441.3819840207.

The spelling of 85989180 in words is "eighty-five million, nine hundred eighty-nine thousand, one hundred eighty".