6398811 has 8 divisors (see below), whose sum is σ = 9479760. Its totient is φ = 4265856.

The previous prime is 6398809. The next prime is 6398813. The reversal of 6398811 is 1188936.

6398811 is a `hidden beast` number, since 639 + 8 + 8 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (6398809) and next prime (6398813).

It is not a de Polignac number, because 6398811 - 2¹ = 6398809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6398813) 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, 118470 + ... + 118523.

It is an arithmetic number, because the mean of its divisors is an integer number (1184970).

Almost surely, 2^6398811 is an apocalyptic number.

6398811 is a deficient number, since it is larger than the sum of its proper divisors (3080949).

6398811 is a wasteful number, since it uses less digits than its factorization.

6398811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237002 (or 236996 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 6398811 is about 2529.5871204606. The cubic root of 6398811 is about 185.6520550301.

The spelling of 6398811 in words is "six million, three hundred ninety-eight thousand, eight hundred eleven".