80785804 has 12 divisors (see below), whose sum is σ = 154227528. Its totient is φ = 36720800.

The previous prime is 80785801. The next prime is 80785813. The reversal of 80785804 is 40858708.

It is a super-2 number, since 2×80785804² = 13052692255852832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80785801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917977 + ... + 918064.

It is an arithmetic number, because the mean of its divisors is an integer number (12852294).

Almost surely, 2^80785804 is an apocalyptic number.

It is an amenable number.

80785804 is a deficient number, since it is larger than the sum of its proper divisors (73441724).

80785804 is a wasteful number, since it uses less digits than its factorization.

80785804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836056 (or 1836054 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 80785804 is about 8988.0923448750. The cubic root of 80785804 is about 432.2931466533.

The spelling of 80785804 in words is "eighty million, seven hundred eighty-five thousand, eight hundred four".