699966199 has 4 divisors (see below), whose sum is σ = 730399536. Its totient is φ = 669532864.

The previous prime is 699966193. The next prime is 699966203. The reversal of 699966199 is 991669996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 699966199 - 2⁵ = 699966167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 699966199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699966193) 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 3 ways as a sum of consecutive naturals, for example, 15216634 + ... + 15216679.

It is an arithmetic number, because the mean of its divisors is an integer number (182599884).

Almost surely, 2^699966199 is an apocalyptic number.

699966199 is a deficient number, since it is larger than the sum of its proper divisors (30433337).

699966199 is a wasteful number, since it uses less digits than its factorization.

699966199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30433336.

The product of its digits is 12754584, while the sum is 64.

The square root of 699966199 is about 26456.8743240769. The cubic root of 699966199 is about 887.8897100634.

The spelling of 699966199 in words is "six hundred ninety-nine million, nine hundred sixty-six thousand, one hundred ninety-nine".