199828005 has 32 divisors (see below), whose sum is σ = 345413376. Its totient is φ = 98064384.

The previous prime is 199828003. The next prime is 199828007. The reversal of 199828005 is 500828991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (199828003) and next prime (199828007).

It is not a de Polignac number, because 199828005 - 2¹ = 199828003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199828003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67384 + ... + 70286.

It is an arithmetic number, because the mean of its divisors is an integer number (10794168).

Almost surely, 2^199828005 is an apocalyptic number.

199828005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199828005 is a deficient number, since it is larger than the sum of its proper divisors (145585371).

199828005 is a wasteful number, since it uses less digits than its factorization.

199828005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 199828005 is about 14136.0533742626. The cubic root of 199828005 is about 584.6358607542.

It can be divided in two parts, 1998 and 28005, that added together give a palindrome (30003).

The spelling of 199828005 in words is "one hundred ninety-nine million, eight hundred twenty-eight thousand, five".