6398998934 has 8 divisors (see below), whose sum is σ = 10163116008. Its totient is φ = 3011293600.

The previous prime is 6398998919. The next prime is 6398998939. The reversal of 6398998934 is 4398998936.

It is a sphenic number, since it is the product of 3 distinct primes.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94102892 + ... + 94102959.

It is an arithmetic number, because the mean of its divisors is an integer number (1270389501).

Almost surely, 2^6398998934 is an apocalyptic number.

6398998934 is a deficient number, since it is larger than the sum of its proper divisors (3764117074).

6398998934 is a wasteful number, since it uses less digits than its factorization.

6398998934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188205870.

The product of its digits is 90699264, while the sum is 68.

The square root of 6398998934 is about 79993.7430928195. The cubic root of 6398998934 is about 1856.5387255482.

The spelling of 6398998934 in words is "six billion, three hundred ninety-eight million, nine hundred ninety-eight thousand, nine hundred thirty-four".