6471256 has 32 divisors (see below), whose sum is σ = 13351680. Its totient is φ = 2916000.

The previous prime is 6471251. The next prime is 6471259. The reversal of 6471256 is 6521746.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6471251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13045 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (417240).

Almost surely, 2^6471256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6471256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6675840).

6471256 is an abundant number, since it is smaller than the sum of its proper divisors (6880424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6471256 is a wasteful number, since it uses less digits than its factorization.

6471256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 651 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 6471256 is about 2543.8663486905. The cubic root of 6471256 is about 186.3500556938.

The spelling of 6471256 in words is "six million, four hundred seventy-one thousand, two hundred fifty-six".