85183681 has 8 divisors (see below), whose sum is σ = 93101184. Its totient is φ = 77295120.

The previous prime is 85183639. The next prime is 85183699. The reversal of 85183681 is 18638158.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85183681 is a prime.

It is a super-2 number, since 2×85183681² = 14512519017419522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85183601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (11637648).

Almost surely, 2^85183681 is an apocalyptic number.

It is an amenable number.

85183681 is a deficient number, since it is larger than the sum of its proper divisors (7917503).

85183681 is a wasteful number, since it uses less digits than its factorization.

85183681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14471.

The product of its digits is 46080, while the sum is 40.

The square root of 85183681 is about 9229.5005823717. The cubic root of 85183681 is about 439.9994507569. Note that the first 3 decimals are identical.

The spelling of 85183681 in words is "eighty-five million, one hundred eighty-three thousand, six hundred eighty-one".