816198298 has 4 divisors (see below), whose sum is σ = 1224297450. Its totient is φ = 408099148.

The previous prime is 816198289. The next prime is 816198307. The reversal of 816198298 is 892891618.

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

It is an interprime number because it is at equal distance from previous prime (816198289) and next prime (816198307).

It can be written as a sum of positive squares in only one way, i.e., 761925609 + 54272689 = 27603^2 + 7367^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204049573 + ... + 204049576.

Almost surely, 2^816198298 is an apocalyptic number.

816198298 is a deficient number, since it is larger than the sum of its proper divisors (408099152).

816198298 is a wasteful number, since it uses less digits than its factorization.

816198298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408099151.

The product of its digits is 497664, while the sum is 52.

The square root of 816198298 is about 28569.1844125799. The cubic root of 816198298 is about 934.5414350829.

The spelling of 816198298 in words is "eight hundred sixteen million, one hundred ninety-eight thousand, two hundred ninety-eight".