85023918 has 60 divisors (see below), whose sum is σ = 221641992. Its totient is φ = 24290280.

The previous prime is 85023901. The next prime is 85023923. The reversal of 85023918 is 81932058.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 2583 + ... + 13293.

Almost surely, 2^85023918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85023918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110820996).

85023918 is an abundant number, since it is smaller than the sum of its proper divisors (136618074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85023918 is a wasteful number, since it uses less digits than its factorization.

85023918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10739 (or 10723 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 85023918 is about 9220.8415017286. The cubic root of 85023918 is about 439.7242038863.

The spelling of 85023918 in words is "eighty-five million, twenty-three thousand, nine hundred eighteen".