199770964 has 12 divisors (see below), whose sum is σ = 350242144. Its totient is φ = 99701784.

The previous prime is 199770943. The next prime is 199770971. The reversal of 199770964 is 469077991.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43464 + ... + 47839.

Almost surely, 2^199770964 is an apocalyptic number.

It is an amenable number.

199770964 is a deficient number, since it is larger than the sum of its proper divisors (150471180).

199770964 is a wasteful number, since it uses less digits than its factorization.

199770964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91854 (or 91852 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 52.

The square root of 199770964 is about 14134.0356586504. The cubic root of 199770964 is about 584.5802272646.

The spelling of 199770964 in words is "one hundred ninety-nine million, seven hundred seventy thousand, nine hundred sixty-four".