478687078 has 8 divisors (see below), whose sum is σ = 718366680. Its totient is φ = 239231520.

The previous prime is 478687039. The next prime is 478687091. The reversal of 478687078 is 870786874.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50563 + ... + 59278.

It is an arithmetic number, because the mean of its divisors is an integer number (89795835).

Almost surely, 2^478687078 is an apocalyptic number.

478687078 is a deficient number, since it is larger than the sum of its proper divisors (239679602).

478687078 is a wasteful number, since it uses less digits than its factorization.

478687078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112022.

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

The square root of 478687078 is about 21878.9185747376. The cubic root of 478687078 is about 782.2589991625.

It can be divided in two parts, 47868 and 7078, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 478687078 in words is "four hundred seventy-eight million, six hundred eighty-seven thousand, seventy-eight".