1399323 has 4 divisors (see below), whose sum is σ = 1865768. Its totient is φ = 932880.

The previous prime is 1399319. The next prime is 1399351. The reversal of 1399323 is 3239931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3239931 = 3 ⋅1079977.

It is not a de Polignac number, because 1399323 - 2² = 1399319 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1399373) 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 in 3 ways as a sum of consecutive naturals, for example, 233218 + ... + 233223.

It is an arithmetic number, because the mean of its divisors is an integer number (466442).

2^1399323 is an apocalyptic number.

1399323 is a deficient number, since it is larger than the sum of its proper divisors (466445).

1399323 is an equidigital number, since it uses as much as digits as its factorization.

1399323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466444.

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

The square root of 1399323 is about 1182.9298373107. The cubic root of 1399323 is about 111.8508591004.

The spelling of 1399323 in words is "one million, three hundred ninety-nine thousand, three hundred twenty-three".