85671588 has 12 divisors (see below), whose sum is σ = 199900400. Its totient is φ = 28557192.

The previous prime is 85671587. The next prime is 85671637. The reversal of 85671588 is 88517658.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (85671581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3569638 + ... + 3569661.

Almost surely, 2^85671588 is an apocalyptic number.

It is an amenable number.

85671588 is an abundant number, since it is smaller than the sum of its proper divisors (114228812).

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

85671588 is a wasteful number, since it uses less digits than its factorization.

85671588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139306 (or 7139304 counting only the distinct ones).

The product of its digits is 537600, while the sum is 48.

The square root of 85671588 is about 9255.8947703612. The cubic root of 85671588 is about 440.8379143236.

The spelling of 85671588 in words is "eighty-five million, six hundred seventy-one thousand, five hundred eighty-eight".