199996598 has 4 divisors (see below), whose sum is σ = 299994900. Its totient is φ = 99998298.

The previous prime is 199996597. The next prime is 199996627. The reversal of 199996598 is 895699991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 895699991 = 167 ⋅5363473.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199996597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999148 + ... + 49999151.

It is an arithmetic number, because the mean of its divisors is an integer number (74998725).

Almost surely, 2^199996598 is an apocalyptic number.

199996598 is a deficient number, since it is larger than the sum of its proper divisors (99998302).

199996598 is an equidigital number, since it uses as much as digits as its factorization.

199996598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99998301.

The product of its digits is 14171760, while the sum is 65.

The square root of 199996598 is about 14142.0153443560. The cubic root of 199996598 is about 584.8002317877.

The spelling of 199996598 in words is "one hundred ninety-nine million, nine hundred ninety-six thousand, five hundred ninety-eight".