199713424 has 15 divisors (see below), whose sum is σ = 387054313. Its totient is φ = 99828448.

The previous prime is 199713379. The next prime is 199713431. The reversal of 199713424 is 424317991.

The square root of 199713424 is 14132.

It is a perfect power (a square), and thus also a powerful number.

199713424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163328400 + 36385024 = 12780^2 + 6032^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 54762 + ... + 58294.

Almost surely, 2^199713424 is an apocalyptic number.

199713424 is the 14132-nd square number.

It is an amenable number.

199713424 is a deficient number, since it is larger than the sum of its proper divisors (187340889).

199713424 is an frugal number, since it uses more digits than its factorization.

199713424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074 (or 3535 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The cubic root of 199713424 is about 584.5240963575.

The spelling of 199713424 in words is "one hundred ninety-nine million, seven hundred thirteen thousand, four hundred twenty-four".