3987833 has 2 divisors, whose sum is σ = 3987834. Its totient is φ = 3987832.

The previous prime is 3987829. The next prime is 3987839. The reversal of 3987833 is 3387893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2849344 + 1138489 = 1688^2 + 1067^2 .

It is an emirp because it is prime and its reverse (3387893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3987833 - 2² = 3987829 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3987839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993916 + 1993917.

It is an arithmetic number, because the mean of its divisors is an integer number (1993917).

Almost surely, 2^3987833 is an apocalyptic number.

It is an amenable number.

3987833 is a deficient number, since it is larger than the sum of its proper divisors (1).

3987833 is an equidigital number, since it uses as much as digits as its factorization.

3987833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 3987833 is about 1996.9559334147. The cubic root of 3987833 is about 158.5789924930.

The spelling of 3987833 in words is "three million, nine hundred eighty-seven thousand, eight hundred thirty-three".