85840814 has 32 divisors (see below), whose sum is σ = 138140640. Its totient is φ = 39940992.

The previous prime is 85840813. The next prime is 85840819. The reversal of 85840814 is 41804858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85840813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168392 + ... + 168900.

It is an arithmetic number, because the mean of its divisors is an integer number (4316895).

Almost surely, 2^85840814 is an apocalyptic number.

85840814 is a deficient number, since it is larger than the sum of its proper divisors (52299826).

85840814 is a wasteful number, since it uses less digits than its factorization.

85840814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 85840814 is about 9265.0317862380. The cubic root of 85840814 is about 441.1279839287.

The spelling of 85840814 in words is "eighty-five million, eight hundred forty thousand, eight hundred fourteen".