85801331 has 8 divisors (see below), whose sum is σ = 106973184. Its totient is φ = 66858120.

The previous prime is 85801307. The next prime is 85801349. The reversal of 85801331 is 13310858.

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

It is not a de Polignac number, because 85801331 - 2¹⁰ = 85800307 is a prime.

It is a super-2 number, since 2×85801331² = 14723736802743122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85801294 and 85801303.

It is not an unprimeable number, because it can be changed into a prime (85801361) 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, 557075 + ... + 557228.

It is an arithmetic number, because the mean of its divisors is an integer number (13371648).

Almost surely, 2^85801331 is an apocalyptic number.

85801331 is a deficient number, since it is larger than the sum of its proper divisors (21171853).

85801331 is a wasteful number, since it uses less digits than its factorization.

85801331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114321.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 85801331 is about 9262.9007875503. The cubic root of 85801331 is about 441.0603403979.

The spelling of 85801331 in words is "eighty-five million, eight hundred one thousand, three hundred thirty-one".