199706013 has 16 divisors (see below), whose sum is σ = 318619840. Its totient is φ = 122895792.

The previous prime is 199706011. The next prime is 199706063. The reversal of 199706013 is 310607991.

It is not a de Polignac number, because 199706013 - 2¹ = 199706011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199706011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284131 + ... + 284832.

It is an arithmetic number, because the mean of its divisors is an integer number (19913740).

Almost surely, 2^199706013 is an apocalyptic number.

199706013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

199706013 is a deficient number, since it is larger than the sum of its proper divisors (118913827).

199706013 is a wasteful number, since it uses less digits than its factorization.

199706013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568985 (or 568979 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 199706013 is about 14131.7377912272. The cubic root of 199706013 is about 584.5168660613.

The spelling of 199706013 in words is "one hundred ninety-nine million, seven hundred six thousand, thirteen".