85109814 has 24 divisors (see below), whose sum is σ = 188694792. Its totient is φ = 27709920.

The previous prime is 85109807. The next prime is 85109831. The reversal of 85109814 is 41890158.

It is a super-2 number, since 2×85109814² = 14487360878229192, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54207 + ... + 55754.

It is an arithmetic number, because the mean of its divisors is an integer number (7862283).

Almost surely, 2^85109814 is an apocalyptic number.

85109814 is an abundant number, since it is smaller than the sum of its proper divisors (103584978).

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

85109814 is a wasteful number, since it uses less digits than its factorization.

85109814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110012 (or 110009 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 85109814 is about 9225.4980353366. The cubic root of 85109814 is about 439.8722321859.

The spelling of 85109814 in words is "eighty-five million, one hundred nine thousand, eight hundred fourteen".