499827109 has 2 divisors, whose sum is σ = 499827110. Its totient is φ = 499827108.

The previous prime is 499827103. The next prime is 499827121. The reversal of 499827109 is 901728994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481934209 + 17892900 = 21953^2 + 4230^2 .

It is a cyclic number.

It is not a de Polignac number, because 499827109 - 2⁵ = 499827077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499827103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249913554 + 249913555.

It is an arithmetic number, because the mean of its divisors is an integer number (249913555).

Almost surely, 2^499827109 is an apocalyptic number.

It is an amenable number.

499827109 is a deficient number, since it is larger than the sum of its proper divisors (1).

499827109 is an equidigital number, since it uses as much as digits as its factorization.

499827109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 499827109 is about 22356.8134804583. The cubic root of 499827109 is about 793.6090329860.

The spelling of 499827109 in words is "four hundred ninety-nine million, eight hundred twenty-seven thousand, one hundred nine".