199479398 has 8 divisors (see below), whose sum is σ = 301403592. Its totient is φ = 99011536.

The previous prime is 199479373. The next prime is 199479403. The reversal of 199479398 is 893974991.

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, 363740 + ... + 364287.

It is an arithmetic number, because the mean of its divisors is an integer number (37675449).

Almost surely, 2^199479398 is an apocalyptic number.

199479398 is a deficient number, since it is larger than the sum of its proper divisors (101924194).

199479398 is a wasteful number, since it uses less digits than its factorization.

199479398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728166.

The product of its digits is 4408992, while the sum is 59.

The square root of 199479398 is about 14123.7175701017. The cubic root of 199479398 is about 584.2956902405.

The spelling of 199479398 in words is "one hundred ninety-nine million, four hundred seventy-nine thousand, three hundred ninety-eight".