4256487 has 12 divisors (see below), whose sum is σ = 6171984. Its totient is φ = 2826720.

The previous prime is 4256471. The next prime is 4256491. The reversal of 4256487 is 7846524.

4256487 is a `hidden beast` number, since 4 + 2 + 5 + 648 + 7 = 666.

It is not a de Polignac number, because 4256487 - 2⁴ = 4256471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256407) 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, 2062 + ... + 3572.

It is an arithmetic number, because the mean of its divisors is an integer number (514332).

Almost surely, 2^4256487 is an apocalyptic number.

4256487 is a deficient number, since it is larger than the sum of its proper divisors (1915497).

4256487 is a wasteful number, since it uses less digits than its factorization.

4256487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830 (or 1827 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 4256487 is about 2063.1255415025. The cubic root of 4256487 is about 162.0629613522.

The spelling of 4256487 in words is "four million, two hundred fifty-six thousand, four hundred eighty-seven".