3990773 has 2 divisors, whose sum is σ = 3990774. Its totient is φ = 3990772.

The previous prime is 3990761. The next prime is 3990827. The reversal of 3990773 is 3770993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3073009 + 917764 = 1753^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 3990773 - 2¹² = 3986677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3990073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1995386 + 1995387.

It is an arithmetic number, because the mean of its divisors is an integer number (1995387).

Almost surely, 2^3990773 is an apocalyptic number.

It is an amenable number.

3990773 is a deficient number, since it is larger than the sum of its proper divisors (1).

3990773 is an equidigital number, since it uses as much as digits as its factorization.

3990773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35721, while the sum is 38.

The square root of 3990773 is about 1997.6919181896. The cubic root of 3990773 is about 158.6179533114.

The spelling of 3990773 in words is "three million, nine hundred ninety thousand, seven hundred seventy-three".