199979373 has 8 divisors (see below), whose sum is σ = 290879136. Its totient is φ = 121199600.

The previous prime is 199979363. The next prime is 199979399. The reversal of 199979373 is 373979991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199979373 - 2¹² = 199975277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199979303) 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, 3029958 + ... + 3030023.

It is an arithmetic number, because the mean of its divisors is an integer number (36359892).

Almost surely, 2^199979373 is an apocalyptic number.

It is an amenable number.

199979373 is a deficient number, since it is larger than the sum of its proper divisors (90899763).

199979373 is a wasteful number, since it uses less digits than its factorization.

199979373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6059995.

The product of its digits is 2893401, while the sum is 57.

The square root of 199979373 is about 14141.4063303478. The cubic root of 199979373 is about 584.7834423801.

The spelling of 199979373 in words is "one hundred ninety-nine million, nine hundred seventy-nine thousand, three hundred seventy-three".