3985349 has 2 divisors, whose sum is σ = 3985350. Its totient is φ = 3985348.

The previous prime is 3985337. The next prime is 3985351. The reversal of 3985349 is 9435893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2044900 + 1940449 = 1430^2 + 1393^2 .

It is an emirp because it is prime and its reverse (9435893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3985349 - 2¹² = 3981253 is a prime.

Together with 3985351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3985249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992674 + 1992675.

It is an arithmetic number, because the mean of its divisors is an integer number (1992675).

Almost surely, 2^3985349 is an apocalyptic number.

It is an amenable number.

3985349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3985349 is an equidigital number, since it uses as much as digits as its factorization.

3985349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 3985349 is about 1996.3338899092. Note that the first 3 decimals coincide. The cubic root of 3985349 is about 158.5460596501.

It can be divided in two parts, 3985 and 349, that added together give a palindrome (4334).

The spelling of 3985349 in words is "three million, nine hundred eighty-five thousand, three hundred forty-nine".