85860731 has 8 divisors (see below), whose sum is σ = 96688128. Its totient is φ = 75537000.

The previous prime is 85860673. The next prime is 85860737. The reversal of 85860731 is 13706858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-85860731 is a prime.

It is a super-2 number, since 2×85860731² = 14744130255708722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85860737) 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, 125555 + ... + 126236.

It is an arithmetic number, because the mean of its divisors is an integer number (12086016).

Almost surely, 2^85860731 is an apocalyptic number.

85860731 is a deficient number, since it is larger than the sum of its proper divisors (10827397).

85860731 is a wasteful number, since it uses less digits than its factorization.

85860731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251833.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 85860731 is about 9266.1065718024. The cubic root of 85860731 is about 441.1620984958.

The spelling of 85860731 in words is "eighty-five million, eight hundred sixty thousand, seven hundred thirty-one".