478584687 has 8 divisors (see below), whose sum is σ = 729271936. Its totient is φ = 273476952.

The previous prime is 478584683. The next prime is 478584721. The reversal of 478584687 is 786485874.

It is a happy number.

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

It is not a de Polignac number, because 478584687 - 2² = 478584683 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 (478584683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11394853 + ... + 11394894.

It is an arithmetic number, because the mean of its divisors is an integer number (91158992).

Almost surely, 2^478584687 is an apocalyptic number.

478584687 is a deficient number, since it is larger than the sum of its proper divisors (250687249).

478584687 is a wasteful number, since it uses less digits than its factorization.

478584687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22789757.

The product of its digits is 12042240, while the sum is 57.

The square root of 478584687 is about 21876.5785030475. The cubic root of 478584687 is about 782.2032202091.

The spelling of 478584687 in words is "four hundred seventy-eight million, five hundred eighty-four thousand, six hundred eighty-seven".