199630373 has 2 divisors, whose sum is σ = 199630374. Its totient is φ = 199630372.

The previous prime is 199630313. The next prime is 199630391. The reversal of 199630373 is 373036991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169182049 + 30448324 = 13007^2 + 5518^2 .

It is a cyclic number.

It is not a de Polignac number, because 199630373 - 2⁸ = 199630117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199630373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199630313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99815186 + 99815187.

It is an arithmetic number, because the mean of its divisors is an integer number (99815187).

Almost surely, 2^199630373 is an apocalyptic number.

It is an amenable number.

199630373 is a deficient number, since it is larger than the sum of its proper divisors (1).

199630373 is an equidigital number, since it uses as much as digits as its factorization.

199630373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 41.

The square root of 199630373 is about 14129.0612922444. The cubic root of 199630373 is about 584.4430601733.

The spelling of 199630373 in words is "one hundred ninety-nine million, six hundred thirty thousand, three hundred seventy-three".