85511814 has 16 divisors (see below), whose sum is σ = 175195440. Its totient is φ = 27808640.

The previous prime is 85511809. The next prime is 85511851. The reversal of 85511814 is 41811558.

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, 173559 + ... + 174050.

It is an arithmetic number, because the mean of its divisors is an integer number (10949715).

Almost surely, 2^85511814 is an apocalyptic number.

85511814 is an abundant number, since it is smaller than the sum of its proper divisors (89683626).

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

85511814 is a wasteful number, since it uses less digits than its factorization.

85511814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347655.

The product of its digits is 6400, while the sum is 33.

The square root of 85511814 is about 9247.2598103438. The cubic root of 85511814 is about 440.5636955705.

The spelling of 85511814 in words is "eighty-five million, five hundred eleven thousand, eight hundred fourteen".