4000783983 has 16 divisors (see below), whose sum is σ = 6128357376. Its totient is φ = 2274190560.

The previous prime is 4000783979. The next prime is 4000783993. The reversal of 4000783983 is 3893870004.

It is not a de Polignac number, because 4000783983 - 2² = 4000783979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000783903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494716 + ... + 502737.

It is an arithmetic number, because the mean of its divisors is an integer number (383022336).

Almost surely, 2^4000783983 is an apocalyptic number.

4000783983 is a deficient number, since it is larger than the sum of its proper divisors (2127573393).

4000783983 is a wasteful number, since it uses less digits than its factorization.

4000783983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997654.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 4000783983 is about 63251.7508295225. The cubic root of 4000783983 is about 1587.5047531467.

The spelling of 4000783983 in words is "four billion, seven hundred eighty-three thousand, nine hundred eighty-three".