3959983 has 2 divisors, whose sum is σ = 3959984. Its totient is φ = 3959982.

The previous prime is 3959981. The next prime is 3960007. The reversal of 3959983 is 3899593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3959983 - 2¹ = 3959981 is a prime.

Together with 3959981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3959981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979991 + 1979992.

It is an arithmetic number, because the mean of its divisors is an integer number (1979992).

Almost surely, 2^3959983 is an apocalyptic number.

3959983 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959983 is an equidigital number, since it uses as much as digits as its factorization.

3959983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 46.

The square root of 3959983 is about 1989.9706027979. The cubic root of 3959983 is about 158.2089714753.

The spelling of 3959983 in words is "three million, nine hundred fifty-nine thousand, nine hundred eighty-three".