85710331 has 4 divisors (see below), whose sum is σ = 97954672. Its totient is φ = 73465992.

The previous prime is 85710329. The next prime is 85710337. The reversal of 85710331 is 13301758.

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

It is a cyclic number.

It is not a de Polignac number, because 85710331 - 2¹ = 85710329 is a prime.

It is a super-2 number, since 2×85710331² = 14692521680259122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85710331.

It is not an unprimeable number, because it can be changed into a prime (85710337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6122160 + ... + 6122173.

It is an arithmetic number, because the mean of its divisors is an integer number (24488668).

Almost surely, 2^85710331 is an apocalyptic number.

85710331 is a deficient number, since it is larger than the sum of its proper divisors (12244341).

85710331 is a wasteful number, since it uses less digits than its factorization.

85710331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244340.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 85710331 is about 9257.9874162801. The cubic root of 85710331 is about 440.9043572357.

The spelling of 85710331 in words is "eighty-five million, seven hundred ten thousand, three hundred thirty-one".