6398888936 has 32 divisors (see below), whose sum is σ = 13218245280. Its totient is φ = 2879784000.

The previous prime is 6398888933. The next prime is 6398888939.

6398888936 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6398888933) and next prime (6398888939).

It is not an unprimeable number, because it can be changed into a prime (6398888933) 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, 351086 + ... + 368861.

It is an arithmetic number, because the mean of its divisors is an integer number (413070165).

Almost surely, 2^6398888936 is an apocalyptic number.

It is an amenable number.

6398888936 is an abundant number, since it is smaller than the sum of its proper divisors (6819356344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6398888936 is a wasteful number, since it uses less digits than its factorization.

6398888936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720065 (or 720061 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 68.

The square root of 6398888936 is about 79993.0555485912. The cubic root of 6398888936 is about 1856.5280875969.

The spelling of 6398888936 in words is "six billion, three hundred ninety-eight million, eight hundred eighty-eight thousand, nine hundred thirty-six".