3983931 has 32 divisors (see below), whose sum is σ = 6842880. Its totient is φ = 2243808.

The previous prime is 3983927. The next prime is 3983951. The reversal of 3983931 is 1393893.

It is not a de Polignac number, because 3983931 - 2² = 3983927 is a prime.

It is a super-2 number, since 2×3983931² = 31743412425522, which contains 22 as substring.

3983931 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3983911) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 20125 + ... + 20321.

It is an arithmetic number, because the mean of its divisors is an integer number (213840).

Almost surely, 2^3983931 is an apocalyptic number.

3983931 is a deficient number, since it is larger than the sum of its proper divisors (2858949).

3983931 is a wasteful number, since it uses less digits than its factorization.

3983931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 314 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 3983931 is about 1995.9787073013. The cubic root of 3983931 is about 158.5272536867.

The spelling of 3983931 in words is "three million, nine hundred eighty-three thousand, nine hundred thirty-one".