479509987 has 8 divisors (see below), whose sum is σ = 525450240. Its totient is φ = 433961160.

The previous prime is 479509967. The next prime is 479509993. The reversal of 479509987 is 789905974.

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 479509987 - 2¹⁹ = 478985699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479509967) 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, 95287 + ... + 100192.

It is an arithmetic number, because the mean of its divisors is an integer number (65681280).

Almost surely, 2^479509987 is an apocalyptic number.

479509987 is a deficient number, since it is larger than the sum of its proper divisors (45940253).

479509987 is a wasteful number, since it uses less digits than its factorization.

479509987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195713.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The square root of 479509987 is about 21897.7164791217. The cubic root of 479509987 is about 782.7070019571.

The spelling of 479509987 in words is "four hundred seventy-nine million, five hundred nine thousand, nine hundred eighty-seven".