6328987 has 12 divisors (see below), whose sum is σ = 7407720. Its totient is φ = 5391456.

The previous prime is 6328967. The next prime is 6328997. The reversal of 6328987 is 7898236.

It is a de Polignac number, because none of the positive numbers 2^k-6328987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6328967) 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, 10839 + ... + 11407.

It is an arithmetic number, because the mean of its divisors is an integer number (617310).

Almost surely, 2^6328987 is an apocalyptic number.

6328987 is a deficient number, since it is larger than the sum of its proper divisors (1078733).

6328987 is a wasteful number, since it uses less digits than its factorization.

6328987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 803 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 6328987 is about 2515.7478013505. The cubic root of 6328987 is about 184.9743037112.

The spelling of 6328987 in words is "six million, three hundred twenty-eight thousand, nine hundred eighty-seven".