499975439 has 2 divisors, whose sum is σ = 499975440. Its totient is φ = 499975438.

The previous prime is 499975391. The next prime is 499975451. The reversal of 499975439 is 934579994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499975439 - 2²⁴ = 483198223 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499975039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249987719 + 249987720.

It is an arithmetic number, because the mean of its divisors is an integer number (249987720).

Almost surely, 2^499975439 is an apocalyptic number.

499975439 is a deficient number, since it is larger than the sum of its proper divisors (1).

499975439 is an equidigital number, since it uses as much as digits as its factorization.

499975439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11022480, while the sum is 59.

The square root of 499975439 is about 22360.1305675973. The cubic root of 499975439 is about 793.6875297189.

The spelling of 499975439 in words is "four hundred ninety-nine million, nine hundred seventy-five thousand, four hundred thirty-nine".