85397814 has 40 divisors (see below), whose sum is σ = 193537080. Its totient is φ = 28141344.

The previous prime is 85397789. The next prime is 85397821. The reversal of 85397814 is 41879358.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85397814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11457 + ... + 17379.

It is an arithmetic number, because the mean of its divisors is an integer number (4838427).

Almost surely, 2^85397814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85397814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768540).

85397814 is an abundant number, since it is smaller than the sum of its proper divisors (108139266).

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

85397814 is a wasteful number, since it uses less digits than its factorization.

85397814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026 (or 6017 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 85397814 is about 9241.0937664326. The cubic root of 85397814 is about 440.3678294700.

The spelling of 85397814 in words is "eighty-five million, three hundred ninety-seven thousand, eight hundred fourteen".