1336399 has 2 divisors, whose sum is σ = 1336400. Its totient is φ = 1336398.

The previous prime is 1336393. The next prime is 1336417. The reversal of 1336399 is 9936331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1336399 - 2⁷ = 1336271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1336393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668199 + 668200.

It is an arithmetic number, because the mean of its divisors is an integer number (668200).

2^1336399 is an apocalyptic number.

1336399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336399 is an equidigital number, since it uses as much as digits as its factorization.

1336399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13122, while the sum is 34.

The square root of 1336399 is about 1156.0272488138. The cubic root of 1336399 is about 110.1485321303.

It can be divided in two parts, 1 and 336399, that added together give a square (336400 = 580²).

The spelling of 1336399 in words is "one million, three hundred thirty-six thousand, three hundred ninety-nine".