843680808 has 48 divisors (see below), whose sum is σ = 2346732180. Its totient is φ = 273625344.

The previous prime is 843680749. The next prime is 843680809. The reversal of 843680808 is 808086348.

It can be written as a sum of positive squares in 2 ways, for example, as 831860964 + 11819844 = 28842^2 + 3438^2 .

It is not an unprimeable number, because it can be changed into a prime (843680809) 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 11 ways as a sum of consecutive naturals, for example, 155685 + ... + 161012.

Almost surely, 2^843680808 is an apocalyptic number.

It is an amenable number.

843680808 is an abundant number, since it is smaller than the sum of its proper divisors (1503051372).

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

843680808 is a wasteful number, since it uses less digits than its factorization.

843680808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316746 (or 316739 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 843680808 is about 29046.1840522985. The cubic root of 843680808 is about 944.9149566536.

The spelling of 843680808 in words is "eight hundred forty-three million, six hundred eighty thousand, eight hundred eight".