85671836 has 24 divisors (see below), whose sum is σ = 159393360. Its totient is φ = 40176000.

The previous prime is 85671821. The next prime is 85671847. The reversal of 85671836 is 63817658.

It is a super-2 number, since 2×85671836² = 14679326967221792, which contains 22 as substring.

It is a congruent number.

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, 2096 + ... + 13256.

It is an arithmetic number, because the mean of its divisors is an integer number (6641390).

Almost surely, 2^85671836 is an apocalyptic number.

It is an amenable number.

85671836 is a deficient number, since it is larger than the sum of its proper divisors (73721524).

85671836 is a wasteful number, since it uses less digits than its factorization.

85671836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11285 (or 11283 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 85671836 is about 9255.9081672195. The cubic root of 85671836 is about 440.8383396988.

The spelling of 85671836 in words is "eighty-five million, six hundred seventy-one thousand, eight hundred thirty-six".