3995489 has 2 divisors, whose sum is σ = 3995490. Its totient is φ = 3995488.

The previous prime is 3995471. The next prime is 3995503. The reversal of 3995489 is 9845993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3900625 + 94864 = 1975^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 3995489 - 2²⁰ = 2946913 is a prime.

It is not a weakly prime, because it can be changed into another prime (3995429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1997744 + 1997745.

It is an arithmetic number, because the mean of its divisors is an integer number (1997745).

Almost surely, 2^3995489 is an apocalyptic number.

It is an amenable number.

3995489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3995489 is an equidigital number, since it uses as much as digits as its factorization.

3995489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 47.

The square root of 3995489 is about 1998.8719318656. The cubic root of 3995489 is about 158.6804096994.

The spelling of 3995489 in words is "three million, nine hundred ninety-five thousand, four hundred eighty-nine".