469932809 has 2 divisors, whose sum is σ = 469932810. Its totient is φ = 469932808.

The previous prime is 469932787. The next prime is 469932847. The reversal of 469932809 is 908239964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459673600 + 10259209 = 21440^2 + 3203^2 .

It is a cyclic number.

It is not a de Polignac number, because 469932809 - 2⁸ = 469932553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (469922809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234966404 + 234966405.

It is an arithmetic number, because the mean of its divisors is an integer number (234966405).

Almost surely, 2^469932809 is an apocalyptic number.

It is an amenable number.

469932809 is a deficient number, since it is larger than the sum of its proper divisors (1).

469932809 is an equidigital number, since it uses as much as digits as its factorization.

469932809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 469932809 is about 21677.9336884307. The cubic root of 469932809 is about 777.4609577070.

The spelling of 469932809 in words is "four hundred sixty-nine million, nine hundred thirty-two thousand, eight hundred nine".