509073479 has 8 divisors (see below), whose sum is σ = 543415680. Its totient is φ = 475486200.

The previous prime is 509073473. The next prime is 509073547. The reversal of 509073479 is 974370905.

It is a happy number.

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 509073479 - 2⁴ = 509073463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509073473) 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, 187337 + ... + 190034.

It is an arithmetic number, because the mean of its divisors is an integer number (67926960).

Almost surely, 2^509073479 is an apocalyptic number.

509073479 is a deficient number, since it is larger than the sum of its proper divisors (34342201).

509073479 is a wasteful number, since it uses less digits than its factorization.

509073479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377461.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 509073479 is about 22562.6567362977. The cubic root of 509073479 is about 798.4728569601.

The spelling of 509073479 in words is "five hundred nine million, seventy-three thousand, four hundred seventy-nine".