3845257 has 12 divisors (see below), whose sum is σ = 4243404. Its totient is φ = 3481920.

The previous prime is 3845251. The next prime is 3845263. The reversal of 3845257 is 7525483.

It is a happy number.

3845257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3845251) and next prime (3845263).

It can be written as a sum of positive squares in 6 ways, for example, as 1485961 + 2359296 = 1219^2 + 1536^2 .

It is not a de Polignac number, because 3845257 - 2¹⁹ = 3320969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3845251) 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 in 11 ways as a sum of consecutive naturals, for example, 10123 + ... + 10495.

It is an arithmetic number, because the mean of its divisors is an integer number (353617).

Almost surely, 2^3845257 is an apocalyptic number.

It is an amenable number.

3845257 is a deficient number, since it is larger than the sum of its proper divisors (398147).

3845257 is a wasteful number, since it uses less digits than its factorization.

3845257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 447 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 3845257 is about 1960.9326862491. The cubic root of 3845257 is about 156.6661329895. Note that the first 3 decimals are identical.

The spelling of 3845257 in words is "three million, eight hundred forty-five thousand, two hundred fifty-seven".