1323399 has 32 divisors (see below), whose sum is σ = 2336256. Its totient is φ = 645120.

The previous prime is 1323389. The next prime is 1323409. The reversal of 1323399 is 9933231.

It is an interprime number because it is at equal distance from previous prime (1323389) and next prime (1323409).

It is not a de Polignac number, because 1323399 - 2⁵ = 1323367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3759 + ... + 4095.

It is an arithmetic number, because the mean of its divisors is an integer number (73008).

2^1323399 is an apocalyptic number.

1323399 is a deficient number, since it is larger than the sum of its proper divisors (1012857).

1323399 is a wasteful number, since it uses less digits than its factorization.

1323399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its digits is 4374, while the sum is 30.

The square root of 1323399 is about 1150.3908031621. The cubic root of 1323399 is about 109.7902061928.

The spelling of 1323399 in words is "one million, three hundred twenty-three thousand, three hundred ninety-nine".