843873894 has 12 divisors (see below), whose sum is σ = 1828393476. Its totient is φ = 281291292.

The previous prime is 843873893. The next prime is 843873937. The reversal of 843873894 is 498378348.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 843873894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843873893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23440924 + ... + 23440959.

It is an arithmetic number, because the mean of its divisors is an integer number (152366123).

Almost surely, 2^843873894 is an apocalyptic number.

843873894 is an abundant number, since it is smaller than the sum of its proper divisors (984519582).

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

843873894 is a wasteful number, since it uses less digits than its factorization.

843873894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46881891 (or 46881888 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The square root of 843873894 is about 29049.5076378241. The cubic root of 843873894 is about 944.9870360193.

The spelling of 843873894 in words is "eight hundred forty-three million, eight hundred seventy-three thousand, eight hundred ninety-four".