3257641 has 2 divisors, whose sum is σ = 3257642. Its totient is φ = 3257640.

The previous prime is 3257623. The next prime is 3257663. The reversal of 3257641 is 1467523.

3257641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2903616 + 354025 = 1704^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 3257641 - 2⁵ = 3257609 is a prime.

It is a super-2 number, since 2×3257641² = 21224449769762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3257671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628820 + 1628821.

It is an arithmetic number, because the mean of its divisors is an integer number (1628821).

Almost surely, 2^3257641 is an apocalyptic number.

It is an amenable number.

3257641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3257641 is an equidigital number, since it uses as much as digits as its factorization.

3257641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 3257641 is about 1804.8936256744. The cubic root of 3257641 is about 148.2407968337.

The spelling of 3257641 in words is "three million, two hundred fifty-seven thousand, six hundred forty-one".