4257387 has 32 divisors (see below), whose sum is σ = 6828800. Its totient is φ = 2612736.

The previous prime is 4257371. The next prime is 4257391. The reversal of 4257387 is 7837524.

4257387 is a `hidden beast` number, since 4 + 2 + 573 + 87 = 666.

4257387 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4257387 - 2⁴ = 4257371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4257587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21963 + ... + 22155.

It is an arithmetic number, because the mean of its divisors is an integer number (213400).

Almost surely, 2^4257387 is an apocalyptic number.

4257387 is a deficient number, since it is larger than the sum of its proper divisors (2571413).

4257387 is a wasteful number, since it uses less digits than its factorization.

4257387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 258 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 4257387 is about 2063.3436456393. The cubic root of 4257387 is about 162.0743828512.

The spelling of 4257387 in words is "four million, two hundred fifty-seven thousand, three hundred eighty-seven".