478969863 has 8 divisors (see below), whose sum is σ = 647375088. Its totient is φ = 314938944.

The previous prime is 478969853. The next prime is 478969867. The reversal of 478969863 is 368969874.

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

It is not a de Polignac number, because 478969863 - 2¹⁰ = 478968839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478969797 and 478969806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478969867) 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, 1093320 + ... + 1093757.

It is an arithmetic number, because the mean of its divisors is an integer number (80921886).

Almost surely, 2^478969863 is an apocalyptic number.

478969863 is a deficient number, since it is larger than the sum of its proper divisors (168405225).

478969863 is a wasteful number, since it uses less digits than its factorization.

478969863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187153.

The product of its digits is 15676416, while the sum is 60.

The square root of 478969863 is about 21885.3801200710. The cubic root of 478969863 is about 782.4130090055.

The spelling of 478969863 in words is "four hundred seventy-eight million, nine hundred sixty-nine thousand, eight hundred sixty-three".