3985297 has 2 divisors, whose sum is σ = 3985298. Its totient is φ = 3985296.

The previous prime is 3985277. The next prime is 3985337. The reversal of 3985297 is 7925893.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2637376 + 1347921 = 1624^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 3985297 - 2¹¹ = 3983249 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 9⁴ + 8⁷ + 5³ + 2¹⁹ + 9⁶ + 7⁷ .

It is not a weakly prime, because it can be changed into another prime (3985207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992648 + 1992649.

It is an arithmetic number, because the mean of its divisors is an integer number (1992649).

Almost surely, 2^3985297 is an apocalyptic number.

It is an amenable number.

3985297 is a deficient number, since it is larger than the sum of its proper divisors (1).

3985297 is an equidigital number, since it uses as much as digits as its factorization.

3985297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 3985297 is about 1996.3208659932. The cubic root of 3985297 is about 158.5453700885.

The spelling of 3985297 in words is "three million, nine hundred eighty-five thousand, two hundred ninety-seven".