1398413 has 2 divisors, whose sum is σ = 1398414. Its totient is φ = 1398412.

The previous prime is 1398407. The next prime is 1398421. The reversal of 1398413 is 3148931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 94249 = 1142^2 + 307^2 .

It is an emirp because it is prime and its reverse (3148931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1398413 - 2⁶ = 1398349 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1398473) 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, 699206 + 699207.

It is an arithmetic number, because the mean of its divisors is an integer number (699207).

2^1398413 is an apocalyptic number.

It is an amenable number.

1398413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398413 is an equidigital number, since it uses as much as digits as its factorization.

1398413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 1398413 is about 1182.5451365593. The cubic root of 1398413 is about 111.8266077651.

The spelling of 1398413 in words is "one million, three hundred ninety-eight thousand, four hundred thirteen".