85331331 has 12 divisors (see below), whose sum is σ = 124642440. Its totient is φ = 56247840.

The previous prime is 85331327. The next prime is 85331333. The reversal of 85331331 is 13313358.

It is not a de Polignac number, because 85331331 - 2² = 85331327 is a prime.

It is a super-2 number, since 2×85331331² = 14562872100463122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85331295 and 85331304.

It is not an unprimeable number, because it can be changed into a prime (85331333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52465 + ... + 54066.

It is an arithmetic number, because the mean of its divisors is an integer number (10386870).

Almost surely, 2^85331331 is an apocalyptic number.

85331331 is a deficient number, since it is larger than the sum of its proper divisors (39311109).

85331331 is a wasteful number, since it uses less digits than its factorization.

85331331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106626 (or 106623 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 85331331 is about 9237.4959269274. The cubic root of 85331331 is about 440.2535229720.

Adding to 85331331 its reverse (13313358), we get a palindrome (98644689).

The spelling of 85331331 in words is "eighty-five million, three hundred thirty-one thousand, three hundred thirty-one".