85097331 has 32 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 51256800.

The previous prime is 85097323. The next prime is 85097351. The reversal of 85097331 is 13379058.

It is not a de Polignac number, because 85097331 - 2³ = 85097323 is a prime.

It is a super-2 number, since 2×85097331² = 14483111486647122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85097321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52966 + ... + 54548.

It is an arithmetic number, because the mean of its divisors is an integer number (4324320).

Almost surely, 2^85097331 is an apocalyptic number.

85097331 is a deficient number, since it is larger than the sum of its proper divisors (53280909).

85097331 is a wasteful number, since it uses less digits than its factorization.

85097331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 85097331 is about 9224.8214616869. The cubic root of 85097331 is about 439.8507258782.

The spelling of 85097331 in words is "eighty-five million, ninety-seven thousand, three hundred thirty-one".