199953964 has 24 divisors (see below), whose sum is σ = 400843520. Its totient is φ = 85494096.

The previous prime is 199953961. The next prime is 199953991. The reversal of 199953964 is 469359991.

It is not an unprimeable number, because it can be changed into a prime (199953961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4159 + ... + 20425.

Almost surely, 2^199953964 is an apocalyptic number.

199953964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199953964 is an abundant number, since it is smaller than the sum of its proper divisors (200889556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199953964 is a wasteful number, since it uses less digits than its factorization.

199953964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16717 (or 16715 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 55.

The square root of 199953964 is about 14140.5079116699. The cubic root of 199953964 is about 584.7586741725.

The spelling of 199953964 in words is "one hundred ninety-nine million, nine hundred fifty-three thousand, nine hundred sixty-four".