199960073 has 4 divisors (see below), whose sum is σ = 199989060. Its totient is φ = 199931088.

The previous prime is 199960049. The next prime is 199960109. The reversal of 199960073 is 370069991.

It is a happy number.

199960073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 128777104 + 71182969 = 11348^2 + 8437^2 .

It is a cyclic number.

It is not a de Polignac number, because 199960073 - 2²⁰ = 198911497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199960003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2483 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (49997265).

Almost surely, 2^199960073 is an apocalyptic number.

It is an amenable number.

199960073 is a deficient number, since it is larger than the sum of its proper divisors (28987).

199960073 is a wasteful number, since it uses less digits than its factorization.

199960073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28986.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 199960073 is about 14140.7239206485. The cubic root of 199960073 is about 584.7646293006.

The spelling of 199960073 in words is "one hundred ninety-nine million, nine hundred sixty thousand, seventy-three".