838197814 has 4 divisors (see below), whose sum is σ = 1257296724. Its totient is φ = 419098906.

The previous prime is 838197799. The next prime is 838197853. The reversal of 838197814 is 418791838.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209549452 + ... + 209549455.

It is an arithmetic number, because the mean of its divisors is an integer number (314324181).

Almost surely, 2^838197814 is an apocalyptic number.

838197814 is a deficient number, since it is larger than the sum of its proper divisors (419098910).

838197814 is a wasteful number, since it uses less digits than its factorization.

838197814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419098909.

The product of its digits is 387072, while the sum is 49.

The square root of 838197814 is about 28951.6461362735. The cubic root of 838197814 is about 942.8635381546.

The spelling of 838197814 in words is "eight hundred thirty-eight million, one hundred ninety-seven thousand, eight hundred fourteen".