509466899 has 8 divisors (see below), whose sum is σ = 520491312. Its totient is φ = 498494880.

The previous prime is 509466857. The next prime is 509466959. The reversal of 509466899 is 998664905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 509466899 - 2¹² = 509462803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509466599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6884 + ... + 32654.

It is an arithmetic number, because the mean of its divisors is an integer number (65061414).

Almost surely, 2^509466899 is an apocalyptic number.

509466899 is a deficient number, since it is larger than the sum of its proper divisors (11024413).

509466899 is a wasteful number, since it uses less digits than its factorization.

509466899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26197.

The product of its (nonzero) digits is 4199040, while the sum is 56.

The square root of 509466899 is about 22571.3734407102. The cubic root of 509466899 is about 798.6784947945.

The spelling of 509466899 in words is "five hundred nine million, four hundred sixty-six thousand, eight hundred ninety-nine".