3895289 has 2 divisors, whose sum is σ = 3895290. Its totient is φ = 3895288.

The previous prime is 3895231. The next prime is 3895291. The reversal of 3895289 is 9825983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3485689 + 409600 = 1867^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3895289 is a prime.

Together with 3895291, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3895789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1947644 + 1947645.

It is an arithmetic number, because the mean of its divisors is an integer number (1947645).

Almost surely, 2^3895289 is an apocalyptic number.

It is an amenable number.

3895289 is a deficient number, since it is larger than the sum of its proper divisors (1).

3895289 is an equidigital number, since it uses as much as digits as its factorization.

3895289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 3895289 is about 1973.6486516095. The cubic root of 3895289 is about 157.3426866307.

The spelling of 3895289 in words is "three million, eight hundred ninety-five thousand, two hundred eighty-nine".