85071986 has 8 divisors (see below), whose sum is σ = 133156224. Its totient is φ = 40686580.

The previous prime is 85071983. The next prime is 85072033. The reversal of 85071986 is 68917058.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (85071983) 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, 924650 + ... + 924741.

It is an arithmetic number, because the mean of its divisors is an integer number (16644528).

Almost surely, 2^85071986 is an apocalyptic number.

85071986 is a deficient number, since it is larger than the sum of its proper divisors (48084238).

85071986 is a wasteful number, since it uses less digits than its factorization.

85071986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849416.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 85071986 is about 9223.4476200605. The cubic root of 85071986 is about 439.8070538325.

The spelling of 85071986 in words is "eighty-five million, seventy-one thousand, nine hundred eighty-six".