843668412 has 24 divisors (see below), whose sum is σ = 1974210000. Its totient is φ = 280415616.

The previous prime is 843668411. The next prime is 843668429. The reversal of 843668412 is 214866348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843668411) 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, 96537 + ... + 104912.

It is an arithmetic number, because the mean of its divisors is an integer number (82258750).

Almost surely, 2^843668412 is an apocalyptic number.

It is an amenable number.

843668412 is an abundant number, since it is smaller than the sum of its proper divisors (1130541588).

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

843668412 is a wasteful number, since it uses less digits than its factorization.

843668412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201805 (or 201803 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 843668412 is about 29045.9706672027. The cubic root of 843668412 is about 944.9103288279.

The spelling of 843668412 in words is "eight hundred forty-three million, six hundred sixty-eight thousand, four hundred twelve".