85817814 has 16 divisors (see below), whose sum is σ = 171735552. Its totient is φ = 28589288.

The previous prime is 85817803. The next prime is 85817839. The reversal of 85817814 is 41871858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11587 + ... + 17489.

It is an arithmetic number, because the mean of its divisors is an integer number (10733472).

Almost surely, 2^85817814 is an apocalyptic number.

85817814 is an abundant number, since it is smaller than the sum of its proper divisors (85917738).

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

85817814 is a wasteful number, since it uses less digits than its factorization.

85817814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331.

The product of its digits is 71680, while the sum is 42.

The square root of 85817814 is about 9263.7904769052. The cubic root of 85817814 is about 441.0885821203.

The spelling of 85817814 in words is "eighty-five million, eight hundred seventeen thousand, eight hundred fourteen".