1338907 has 2 divisors, whose sum is σ = 1338908. Its totient is φ = 1338906.

The previous prime is 1338881. The next prime is 1338923. The reversal of 1338907 is 7098331.

It is a strong prime.

It is an emirp because it is prime and its reverse (7098331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1338907 - 2¹⁵ = 1306139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1338107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669453 + 669454.

It is an arithmetic number, because the mean of its divisors is an integer number (669454).

2^1338907 is an apocalyptic number.

1338907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338907 is an equidigital number, since it uses as much as digits as its factorization.

1338907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1338907 is about 1157.1114898747. Note that the first 3 decimals coincide. The cubic root of 1338907 is about 110.2173937716.

The spelling of 1338907 in words is "one million, three hundred thirty-eight thousand, nine hundred seven".