199702005 has 16 divisors (see below), whose sum is σ = 321042624. Its totient is φ = 106001280.

The previous prime is 199702003. The next prime is 199702057. The reversal of 199702005 is 500207991.

It is not a de Polignac number, because 199702005 - 2¹ = 199702003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199702001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28384 + ... + 34713.

It is an arithmetic number, because the mean of its divisors is an integer number (20065164).

Almost surely, 2^199702005 is an apocalyptic number.

199702005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199702005 is a deficient number, since it is larger than the sum of its proper divisors (121340619).

199702005 is a wasteful number, since it uses less digits than its factorization.

199702005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63316.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 199702005 is about 14131.5959820538. The cubic root of 199702005 is about 584.5129557145.

Adding to 199702005 its reverse (500207991), we get a palindrome (699909996).

The spelling of 199702005 in words is "one hundred ninety-nine million, seven hundred two thousand, five".