85699331 has 4 divisors (see below), whose sum is σ = 85718712. Its totient is φ = 85679952.

The previous prime is 85699319. The next prime is 85699349. The reversal of 85699331 is 13399658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85699331 is a prime.

It is a super-2 number, since 2×85699331² = 14688750667695122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85699351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (21429678).

Almost surely, 2^85699331 is an apocalyptic number.

85699331 is a deficient number, since it is larger than the sum of its proper divisors (19381).

85699331 is a wasteful number, since it uses less digits than its factorization.

85699331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19380.

The product of its digits is 174960, while the sum is 44.

The square root of 85699331 is about 9257.3933156154. The cubic root of 85699331 is about 440.8854946499.

The spelling of 85699331 in words is "eighty-five million, six hundred ninety-nine thousand, three hundred thirty-one".