6398587 has 8 divisors (see below), whose sum is σ = 6942320. Its totient is φ = 5862240.

The previous prime is 6398569. The next prime is 6398593. The reversal of 6398587 is 7858936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6398587 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6398537) 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, 37 + ... + 3577.

It is an arithmetic number, because the mean of its divisors is an integer number (867790).

Almost surely, 2^6398587 is an apocalyptic number.

6398587 is a deficient number, since it is larger than the sum of its proper divisors (543733).

6398587 is a wasteful number, since it uses less digits than its factorization.

6398587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693.

The product of its digits is 362880, while the sum is 46.

The square root of 6398587 is about 2529.5428440728. The cubic root of 6398587 is about 185.6498886617.

The spelling of 6398587 in words is "six million, three hundred ninety-eight thousand, five hundred eighty-seven".