199994699 has 2 divisors, whose sum is σ = 199994700. Its totient is φ = 199994698.

The previous prime is 199994693. The next prime is 199994723. The reversal of 199994699 is 996499991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199994699 - 2¹² = 199990603 is a prime.

It is not a weakly prime, because it can be changed into another prime (199994693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99997349 + 99997350.

It is an arithmetic number, because the mean of its divisors is an integer number (99997350).

Almost surely, 2^199994699 is an apocalyptic number.

199994699 is a deficient number, since it is larger than the sum of its proper divisors (1).

199994699 is an equidigital number, since it uses as much as digits as its factorization.

199994699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12754584, while the sum is 65.

The square root of 199994699 is about 14141.9482038367. The cubic root of 199994699 is about 584.7983808576.

The spelling of 199994699 in words is "one hundred ninety-nine million, nine hundred ninety-four thousand, six hundred ninety-nine".