6398011 has 4 divisors (see below), whose sum is σ = 6418512. Its totient is φ = 6377512.

The previous prime is 6397999. The next prime is 6398017. The reversal of 6398011 is 1108936.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6398011 - 2¹³ = 6389819 is a prime.

It is a super-2 number, since 2×6398011² = 81869089512242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6398017) 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, 9775 + ... + 10408.

It is an arithmetic number, because the mean of its divisors is an integer number (1604628).

Almost surely, 2^6398011 is an apocalyptic number.

6398011 is a deficient number, since it is larger than the sum of its proper divisors (20501).

6398011 is a wasteful number, since it uses less digits than its factorization.

6398011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20500.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 6398011 is about 2529.4289869455. The cubic root of 6398011 is about 185.6443177680.

The spelling of 6398011 in words is "six million, three hundred ninety-eight thousand, eleven".