199376929 has 4 divisors (see below), whose sum is σ = 201351060. Its totient is φ = 197402800.

The previous prime is 199376911. The next prime is 199376953. The reversal of 199376929 is 929673991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197346304 + 2030625 = 14048^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 199376929 - 2¹³ = 199368737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199376929.

It is not an unprimeable number, because it can be changed into a prime (199376909) 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, 986914 + ... + 987115.

It is an arithmetic number, because the mean of its divisors is an integer number (50337765).

Almost surely, 2^199376929 is an apocalyptic number.

It is an amenable number.

199376929 is a deficient number, since it is larger than the sum of its proper divisors (1974131).

199376929 is a wasteful number, since it uses less digits than its factorization.

199376929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974130.

The product of its digits is 1653372, while the sum is 55.

The square root of 199376929 is about 14120.0895535404. The cubic root of 199376929 is about 584.1956256886.

The spelling of 199376929 in words is "one hundred ninety-nine million, three hundred seventy-six thousand, nine hundred twenty-nine".