843676640 has 24 divisors (see below), whose sum is σ = 1993186440. Its totient is φ = 337470592.

The previous prime is 843676601. The next prime is 843676643. The reversal of 843676640 is 46676348.

It is a happy number.

843676640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 843676591 and 843676600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843676643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2636330 + ... + 2636649.

It is an arithmetic number, because the mean of its divisors is an integer number (83049435).

Almost surely, 2^843676640 is an apocalyptic number.

843676640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

843676640 is an abundant number, since it is smaller than the sum of its proper divisors (1149509800).

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

843676640 is a wasteful number, since it uses less digits than its factorization.

843676640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272994 (or 5272986 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 843676640 is about 29046.1123044031. The cubic root of 843676640 is about 944.9134006102.

The spelling of 843676640 in words is "eight hundred forty-three million, six hundred seventy-six thousand, six hundred forty".