439961099 has 2 divisors, whose sum is σ = 439961100. Its totient is φ = 439961098.

The previous prime is 439961047. The next prime is 439961149. The reversal of 439961099 is 990169934.

It is a happy number.

It is an a-pointer prime, because the next prime (439961149) can be obtained adding 439961099 to its sum of digits (50).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439961099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (439961009) 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, 219980549 + 219980550.

It is an arithmetic number, because the mean of its divisors is an integer number (219980550).

Almost surely, 2^439961099 is an apocalyptic number.

439961099 is a deficient number, since it is larger than the sum of its proper divisors (1).

439961099 is an equidigital number, since it uses as much as digits as its factorization.

439961099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 439961099 is about 20975.2496767023. The cubic root of 439961099 is about 760.5680765441.

The spelling of 439961099 in words is "four hundred thirty-nine million, nine hundred sixty-one thousand, ninety-nine".