1983086872 has 32 divisors (see below), whose sum is σ = 4021844400. Its totient is φ = 911263104.

The previous prime is 1983086843. The next prime is 1983086899. The reversal of 1983086872 is 2786803891.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17818 + ... + 65449.

Almost surely, 2^1983086872 is an apocalyptic number.

It is an amenable number.

1983086872 is an abundant number, since it is smaller than the sum of its proper divisors (2038757528).

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

1983086872 is a wasteful number, since it uses less digits than its factorization.

1983086872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83515 (or 83511 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 1983086872 is about 44531.8635585802. The cubic root of 1983086872 is about 1256.3594570040.

The spelling of 1983086872 in words is "one billion, nine hundred eighty-three million, eighty-six thousand, eight hundred seventy-two".