1993398698 has 8 divisors (see below), whose sum is σ = 3032212320. Its totient is φ = 982661260.

The previous prime is 1993398697. The next prime is 1993398709. The reversal of 1993398698 is 8968933991.

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

It is not an unprimeable number, because it can be changed into a prime (1993398697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7018868 + ... + 7019151.

It is an arithmetic number, because the mean of its divisors is an integer number (379026540).

Almost surely, 2^1993398698 is an apocalyptic number.

1993398698 is a deficient number, since it is larger than the sum of its proper divisors (1038813622).

1993398698 is a wasteful number, since it uses less digits than its factorization.

1993398698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14038092.

The product of its digits is 22674816, while the sum is 65.

The square root of 1993398698 is about 44647.4937482497. The cubic root of 1993398698 is about 1258.5333354284.

The spelling of 1993398698 in words is "one billion, nine hundred ninety-three million, three hundred ninety-eight thousand, six hundred ninety-eight".