1439323 has 2 divisors, whose sum is σ = 1439324. Its totient is φ = 1439322.

The previous prime is 1439309. The next prime is 1439329. The reversal of 1439323 is 3239341.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1439323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1439329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719661 + 719662.

It is an arithmetic number, because the mean of its divisors is an integer number (719662).

2^1439323 is an apocalyptic number.

1439323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1439323 is an equidigital number, since it uses as much as digits as its factorization.

1439323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 1439323 is about 1199.7178835043. The cubic root of 1439323 is about 112.9066239864.

The spelling of 1439323 in words is "one million, four hundred thirty-nine thousand, three hundred twenty-three".