80785814 has 16 divisors (see below), whose sum is σ = 125559936. Its totient is φ = 38942400.

The previous prime is 80785813. The next prime is 80785829. The reversal of 80785814 is 41858708.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80785813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15104 + ... + 19740.

It is an arithmetic number, because the mean of its divisors is an integer number (7847496).

Almost surely, 2^80785814 is an apocalyptic number.

80785814 is a deficient number, since it is larger than the sum of its proper divisors (44774122).

80785814 is a wasteful number, since it uses less digits than its factorization.

80785814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 80785814 is about 8988.0929011665. The cubic root of 80785814 is about 432.2931644904.

The spelling of 80785814 in words is "eighty million, seven hundred eighty-five thousand, eight hundred fourteen".