6398998936 has 16 divisors (see below), whose sum is σ = 13088861640. Its totient is φ = 2908635840.

The previous prime is 6398998919. The next prime is 6398998939.

6398998936 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6398998939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36357861 + ... + 36358036.

Almost surely, 2^6398998936 is an apocalyptic number.

It is an amenable number.

6398998936 is an abundant number, since it is smaller than the sum of its proper divisors (6689862704).

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

6398998936 is a wasteful number, since it uses less digits than its factorization.

6398998936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72715914 (or 72715910 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 70.

The square root of 6398998936 is about 79993.7431053204. The cubic root of 6398998936 is about 1856.5387257416.

The spelling of 6398998936 in words is "six billion, three hundred ninety-eight million, nine hundred ninety-eight thousand, nine hundred thirty-six".