439130899 has 2 divisors, whose sum is σ = 439130900. Its totient is φ = 439130898.

The previous prime is 439130897. The next prime is 439130959. The reversal of 439130899 is 998031934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 439130899 - 2¹ = 439130897 is a prime.

Together with 439130897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (439130891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219565449 + 219565450.

It is an arithmetic number, because the mean of its divisors is an integer number (219565450).

Almost surely, 2^439130899 is an apocalyptic number.

439130899 is a deficient number, since it is larger than the sum of its proper divisors (1).

439130899 is an equidigital number, since it uses as much as digits as its factorization.

439130899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 439130899 is about 20955.4503411404. The cubic root of 439130899 is about 760.0893818006.

The spelling of 439130899 in words is "four hundred thirty-nine million, one hundred thirty thousand, eight hundred ninety-nine".