6487899 has 24 divisors (see below), whose sum is σ = 9697296. Its totient is φ = 3854400.

The previous prime is 6487879. The next prime is 6487903. The reversal of 6487899 is 9987846.

It is a happy number.

It is not a de Polignac number, because 6487899 - 2⁸ = 6487643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6487849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21997 + ... + 22289.

It is an arithmetic number, because the mean of its divisors is an integer number (404054).

Almost surely, 2^6487899 is an apocalyptic number.

6487899 is a deficient number, since it is larger than the sum of its proper divisors (3209397).

6487899 is a wasteful number, since it uses less digits than its factorization.

6487899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 368 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 6487899 is about 2547.1354498731. The cubic root of 6487899 is about 186.5096727752.

The spelling of 6487899 in words is "six million, four hundred eighty-seven thousand, eight hundred ninety-nine".