4027257 has 12 divisors (see below), whose sum is σ = 6264804. Its totient is φ = 2478240.

The previous prime is 4027237. The next prime is 4027273. The reversal of 4027257 is 7527204.

4027257 is a `hidden beast` number, since 402 + 7 + 257 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2499561 + 1527696 = 1581^2 + 1236^2 .

It is not a de Polignac number, because 4027257 - 2⁶ = 4027193 is a prime.

4027257 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4027257.

It is not an unprimeable number, because it can be changed into a prime (4027217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17094 + ... + 17327.

It is an arithmetic number, because the mean of its divisors is an integer number (522067).

Almost surely, 2^4027257 is an apocalyptic number.

It is an amenable number.

4027257 is a deficient number, since it is larger than the sum of its proper divisors (2237547).

4027257 is a wasteful number, since it uses less digits than its factorization.

4027257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34440 (or 34437 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 4027257 is about 2006.8026808832. The cubic root of 4027257 is about 159.0998542107.

The spelling of 4027257 in words is "four million, twenty-seven thousand, two hundred fifty-seven".