85426881 has 8 divisors (see below), whose sum is σ = 114561600. Its totient is φ = 56621712.

The previous prime is 85426879. The next prime is 85426933. The reversal of 85426881 is 18862458.

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

It is not a de Polignac number, because 85426881 - 2¹ = 85426879 is a prime.

It is a super-2 number, since 2×85426881² = 14595503994776322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85426801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81781 + ... + 82818.

It is an arithmetic number, because the mean of its divisors is an integer number (14320200).

Almost surely, 2^85426881 is an apocalyptic number.

It is an amenable number.

85426881 is a deficient number, since it is larger than the sum of its proper divisors (29134719).

85426881 is a wasteful number, since it uses less digits than its factorization.

85426881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164775.

The product of its digits is 122880, while the sum is 42.

The square root of 85426881 is about 9242.6663360742. Note that the first 3 decimals coincide. The cubic root of 85426881 is about 440.4177867195.

The spelling of 85426881 in words is "eighty-five million, four hundred twenty-six thousand, eight hundred eighty-one".