478807678 has 8 divisors (see below), whose sum is σ = 720862560. Its totient is φ = 238520160.

The previous prime is 478807673. The next prime is 478807691. The reversal of 478807678 is 876708874.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478807673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441163 + ... + 442246.

It is an arithmetic number, because the mean of its divisors is an integer number (90107820).

Almost surely, 2^478807678 is an apocalyptic number.

478807678 is a deficient number, since it is larger than the sum of its proper divisors (242054882).

478807678 is a wasteful number, since it uses less digits than its factorization.

478807678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883682.

The product of its (nonzero) digits is 4214784, while the sum is 55.

The square root of 478807678 is about 21881.6744788876. The cubic root of 478807678 is about 782.3246875270.

The spelling of 478807678 in words is "four hundred seventy-eight million, eight hundred seven thousand, six hundred seventy-eight".