1983846872 has 32 divisors (see below), whose sum is σ = 4267296000. Its totient is φ = 846981024.

The previous prime is 1983846863. The next prime is 1983846901. The reversal of 1983846872 is 2786483891.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52622 + ... + 82077.

It is an arithmetic number, because the mean of its divisors is an integer number (133353000).

Almost surely, 2^1983846872 is an apocalyptic number.

It is an amenable number.

1983846872 is an abundant number, since it is smaller than the sum of its proper divisors (2283449128).

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

1983846872 is a wasteful number, since it uses less digits than its factorization.

1983846872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134975 (or 134971 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 1983846872 is about 44540.3959569288. The cubic root of 1983846872 is about 1256.5199326157.

The spelling of 1983846872 in words is "one billion, nine hundred eighty-three million, eight hundred forty-six thousand, eight hundred seventy-two".