199689058 has 4 divisors (see below), whose sum is σ = 299533590. Its totient is φ = 99844528.

The previous prime is 199689053. The next prime is 199689067. The reversal of 199689058 is 850986991.

199689058 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.

It can be written as a sum of positive squares in only one way, i.e., 179104689 + 20584369 = 13383^2 + 4537^2 .

It is not an unprimeable number, because it can be changed into a prime (199689053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49922263 + ... + 49922266.

Almost surely, 2^199689058 is an apocalyptic number.

199689058 is a deficient number, since it is larger than the sum of its proper divisors (99844532).

199689058 is an equidigital number, since it uses as much as digits as its factorization.

199689058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99844531.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 199689058 is about 14131.1378876579. The cubic root of 199689058 is about 584.5003238053.

The spelling of 199689058 in words is "one hundred ninety-nine million, six hundred eighty-nine thousand, fifty-eight".