509353869 has 8 divisors (see below), whose sum is σ = 680673312. Its totient is φ = 338801840.

The previous prime is 509353799. The next prime is 509353891. The reversal of 509353869 is 968353905.

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 509353869 - 2¹³ = 509345677 is a prime.

It is a super-2 number, since 2×509353869² = 518882727730538322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509353969) 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, 190302 + ... + 192959.

It is an arithmetic number, because the mean of its divisors is an integer number (85084164).

Almost surely, 2^509353869 is an apocalyptic number.

It is an amenable number.

509353869 is a deficient number, since it is larger than the sum of its proper divisors (171319443).

509353869 is a wasteful number, since it uses less digits than its factorization.

509353869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383707.

The product of its (nonzero) digits is 874800, while the sum is 48.

The square root of 509353869 is about 22568.8694665905. The cubic root of 509353869 is about 798.6194256594.

The spelling of 509353869 in words is "five hundred nine million, three hundred fifty-three thousand, eight hundred sixty-nine".