486855478 has 4 divisors (see below), whose sum is σ = 730283220. Its totient is φ = 243427738.

The previous prime is 486855461. The next prime is 486855491. The reversal of 486855478 is 874558684.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121713868 + ... + 121713871.

It is an arithmetic number, because the mean of its divisors is an integer number (182570805).

Almost surely, 2^486855478 is an apocalyptic number.

486855478 is a deficient number, since it is larger than the sum of its proper divisors (243427742).

486855478 is a wasteful number, since it uses less digits than its factorization.

486855478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243427741.

The product of its digits is 8601600, while the sum is 55.

The square root of 486855478 is about 22064.8017892752. The cubic root of 486855478 is about 786.6834619687.

The spelling of 486855478 in words is "four hundred eighty-six million, eight hundred fifty-five thousand, four hundred seventy-eight".