1338686803 has 2 divisors, whose sum is σ = 1338686804. Its totient is φ = 1338686802.

The previous prime is 1338686747. The next prime is 1338686809. The reversal of 1338686803 is 3086868331.

It is a strong prime.

It is an emirp because it is prime and its reverse (3086868331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1338686803 - 2²⁵ = 1305132371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1338686809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669343401 + 669343402.

It is an arithmetic number, because the mean of its divisors is an integer number (669343402).

Almost surely, 2^1338686803 is an apocalyptic number.

1338686803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338686803 is an equidigital number, since it uses as much as digits as its factorization.

1338686803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 1338686803 is about 36588.0691346237. The cubic root of 1338686803 is about 1102.1135131307.

The spelling of 1338686803 in words is "one billion, three hundred thirty-eight million, six hundred eighty-six thousand, eight hundred three".