6487291 has 4 divisors (see below), whose sum is σ = 6576232. Its totient is φ = 6398352.

The previous prime is 6487279. The next prime is 6487297. The reversal of 6487291 is 1927846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6487291 - 2⁵ = 6487259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6487291.

It is not an unprimeable number, because it can be changed into a prime (6487297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44361 + ... + 44506.

It is an arithmetic number, because the mean of its divisors is an integer number (1644058).

Almost surely, 2^6487291 is an apocalyptic number.

6487291 is a deficient number, since it is larger than the sum of its proper divisors (88941).

6487291 is an equidigital number, since it uses as much as digits as its factorization.

6487291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88940.

The product of its digits is 24192, while the sum is 37.

The square root of 6487291 is about 2547.0160973186. The cubic root of 6487291 is about 186.5038464708.

The spelling of 6487291 in words is "six million, four hundred eighty-seven thousand, two hundred ninety-one".