85189512 has 32 divisors (see below), whose sum is σ = 214056000. Its totient is φ = 28252224.

The previous prime is 85189487. The next prime is 85189529. The reversal of 85189512 is 21598158.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4143 + ... + 13694.

It is an arithmetic number, because the mean of its divisors is an integer number (6689250).

Almost surely, 2^85189512 is an apocalyptic number.

It is an amenable number.

85189512 is an abundant number, since it is smaller than the sum of its proper divisors (128866488).

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

85189512 is a wasteful number, since it uses less digits than its factorization.

85189512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18045 (or 18041 counting only the distinct ones).

The product of its digits is 28800, while the sum is 39.

The square root of 85189512 is about 9229.8164662143. The cubic root of 85189512 is about 440.0094901534.

The spelling of 85189512 in words is "eighty-five million, one hundred eighty-nine thousand, five hundred twelve".