6487251 has 16 divisors (see below), whose sum is σ = 9237888. Its totient is φ = 4035200.

The previous prime is 6487223. The next prime is 6487259. The reversal of 6487251 is 1527846.

It is a cyclic number.

It is not a de Polignac number, because 6487251 - 2⁷ = 6487123 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6487259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6196 + ... + 7166.

It is an arithmetic number, because the mean of its divisors is an integer number (577368).

Almost surely, 2^6487251 is an apocalyptic number.

6487251 is a deficient number, since it is larger than the sum of its proper divisors (2750637).

6487251 is a wasteful number, since it uses less digits than its factorization.

6487251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122.

The product of its digits is 13440, while the sum is 33.

The square root of 6487251 is about 2547.0082449808. The cubic root of 6487251 is about 186.5034631485.

The spelling of 6487251 in words is "six million, four hundred eighty-seven thousand, two hundred fifty-one".