85636331 has 8 divisors (see below), whose sum is σ = 95700528. Its totient is φ = 75952000.

The previous prime is 85636319. The next prime is 85636339. The reversal of 85636331 is 13363658.

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-85636331 is a prime.

It is a super-2 number, since 2×85636331² = 14667162374283122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85636291 and 85636300.

It is not an unprimeable number, because it can be changed into a prime (85636339) 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, 94490 + ... + 95391.

It is an arithmetic number, because the mean of its divisors is an integer number (11962566).

Almost surely, 2^85636331 is an apocalyptic number.

85636331 is a deficient number, since it is larger than the sum of its proper divisors (10064197).

85636331 is a wasteful number, since it uses less digits than its factorization.

85636331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189933.

The product of its digits is 38880, while the sum is 35.

The square root of 85636331 is about 9253.9900043171. The cubic root of 85636331 is about 440.7774323703. Note that the first 3 decimals are identical.

Adding to 85636331 its reverse (13363658), we get a palindrome (98999989).

The spelling of 85636331 in words is "eighty-five million, six hundred thirty-six thousand, three hundred thirty-one".