1338479 has 2 divisors, whose sum is σ = 1338480. Its totient is φ = 1338478.

The previous prime is 1338473. The next prime is 1338481. The reversal of 1338479 is 9748331.

It is a strong prime.

It is an emirp because it is prime and its reverse (9748331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338479 is a prime.

It is a Sophie Germain prime.

Together with 1338481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669239 + 669240.

It is an arithmetic number, because the mean of its divisors is an integer number (669240).

2^1338479 is an apocalyptic number.

1338479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338479 is an equidigital number, since it uses as much as digits as its factorization.

1338479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 1338479 is about 1156.9265318074. The cubic root of 1338479 is about 110.2056483524.

The spelling of 1338479 in words is "one million, three hundred thirty-eight thousand, four hundred seventy-nine".