1983817436 has 24 divisors (see below), whose sum is σ = 3813290880. Its totient is φ = 898845552.

The previous prime is 1983817421. The next prime is 1983817447. The reversal of 1983817436 is 6347183891.

It is a super-2 number, since 2×1983817436² = 7871063238755228192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565706 + ... + 569201.

It is an arithmetic number, because the mean of its divisors is an integer number (158887120).

Almost surely, 2^1983817436 is an apocalyptic number.

It is an amenable number.

1983817436 is a deficient number, since it is larger than the sum of its proper divisors (1829473444).

1983817436 is a wasteful number, since it uses less digits than its factorization.

1983817436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134953 (or 1134951 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 1983817436 is about 44540.0655140964. The cubic root of 1983817436 is about 1256.5137179049.

The spelling of 1983817436 in words is "one billion, nine hundred eighty-three million, eight hundred seventeen thousand, four hundred thirty-six".