3999763 has 2 divisors, whose sum is σ = 3999764. Its totient is φ = 3999762.

The previous prime is 3999739. The next prime is 3999773. The reversal of 3999763 is 3679993.

It is a strong prime.

It is an emirp because it is prime and its reverse (3679993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3999763 - 2⁹ = 3999251 is a prime.

It is not a weakly prime, because it can be changed into another prime (3999703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999881 + 1999882.

It is an arithmetic number, because the mean of its divisors is an integer number (1999882).

Almost surely, 2^3999763 is an apocalyptic number.

3999763 is a deficient number, since it is larger than the sum of its proper divisors (1).

3999763 is an equidigital number, since it uses as much as digits as its factorization.

3999763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 46.

The square root of 3999763 is about 1999.9407491223. The cubic root of 3999763 is about 158.7369700178.

The spelling of 3999763 in words is "three million, nine hundred ninety-nine thousand, seven hundred sixty-three".