6398827 has 4 divisors (see below), whose sum is σ = 6420960. Its totient is φ = 6376696.

The previous prime is 6398813. The next prime is 6398857. The reversal of 6398827 is 7288936.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6398827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6398857) 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, 10627 + ... + 11212.

It is an arithmetic number, because the mean of its divisors is an integer number (1605240).

Almost surely, 2^6398827 is an apocalyptic number.

6398827 is a deficient number, since it is larger than the sum of its proper divisors (22133).

6398827 is a wasteful number, since it uses less digits than its factorization.

6398827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22132.

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

The square root of 6398827 is about 2529.5902830300. The cubic root of 6398827 is about 185.6522097687.

It can be divided in two parts, 6398 and 827, that added together give a square (7225 = 85²).

The spelling of 6398827 in words is "six million, three hundred ninety-eight thousand, eight hundred twenty-seven".