6723998398 has 8 divisors (see below), whose sum is σ = 10861843608. Its totient is φ = 3103383864.

The previous prime is 6723998383. The next prime is 6723998429. The reversal of 6723998398 is 8938993276.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129307636 + ... + 129307687.

It is an arithmetic number, because the mean of its divisors is an integer number (1357730451).

Almost surely, 2^6723998398 is an apocalyptic number.

6723998398 is a deficient number, since it is larger than the sum of its proper divisors (4137845210).

6723998398 is a wasteful number, since it uses less digits than its factorization.

6723998398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258615338.

The product of its digits is 35271936, while the sum is 64.

The square root of 6723998398 is about 81999.9902317067. The cubic root of 6723998398 is about 1887.4517881228.

The spelling of 6723998398 in words is "six billion, seven hundred twenty-three million, nine hundred ninety-eight thousand, three hundred ninety-eight".