1430939 has 2 divisors, whose sum is σ = 1430940. Its totient is φ = 1430938.

The previous prime is 1430921. The next prime is 1430953. The reversal of 1430939 is 9390341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1430939 - 2⁸ = 1430683 is a prime.

It is not a weakly prime, because it can be changed into another prime (1430959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715469 + 715470.

It is an arithmetic number, because the mean of its divisors is an integer number (715470).

2^1430939 is an apocalyptic number.

1430939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430939 is an equidigital number, since it uses as much as digits as its factorization.

1430939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 1430939 is about 1196.2186255029. The cubic root of 1430939 is about 112.6869713919.

The spelling of 1430939 in words is "one million, four hundred thirty thousand, nine hundred thirty-nine".