403439 has 2 divisors, whose sum is σ = 403440. Its totient is φ = 403438.

The previous prime is 403433. The next prime is 403483. The reversal of 403439 is 934304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 403439 - 2¹⁶ = 337903 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 403439.

It is not a weakly prime, because it can be changed into another prime (403433) 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, 201719 + 201720.

It is an arithmetic number, because the mean of its divisors is an integer number (201720).

2⁴⁰³⁴³⁹ is an apocalyptic number.

403439 is a deficient number, since it is larger than the sum of its proper divisors (1).

403439 is an equidigital number, since it uses as much as digits as its factorization.

403439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 403439 is about 635.1684815858. The cubic root of 403439 is about 73.8911841131.

The spelling of 403439 in words is "four hundred three thousand, four hundred thirty-nine".