199399411 has 4 divisors (see below), whose sum is σ = 199429672. Its totient is φ = 199369152.

The previous prime is 199399391. The next prime is 199399439. The reversal of 199399411 is 114993991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114993991 = 7 ⋅16427713.

It is a cyclic number.

It is not a de Polignac number, because 199399411 - 2¹³ = 199391219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199399111) 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, 585 + ... + 19978.

It is an arithmetic number, because the mean of its divisors is an integer number (49857418).

Almost surely, 2^199399411 is an apocalyptic number.

199399411 is a deficient number, since it is larger than the sum of its proper divisors (30261).

199399411 is an equidigital number, since it uses as much as digits as its factorization.

199399411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30260.

The product of its digits is 78732, while the sum is 46.

The square root of 199399411 is about 14120.8856308661. The cubic root of 199399411 is about 584.2175830810.

The spelling of 199399411 in words is "one hundred ninety-nine million, three hundred ninety-nine thousand, four hundred eleven".