478448123 has 4 divisors (see below), whose sum is σ = 479653680. Its totient is φ = 477242568.

The previous prime is 478448099. The next prime is 478448137. The reversal of 478448123 is 321844874.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 478448123 - 2¹² = 478444027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478448183) 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, 602183 + ... + 602976.

It is an arithmetic number, because the mean of its divisors is an integer number (119913420).

Almost surely, 2^478448123 is an apocalyptic number.

478448123 is a deficient number, since it is larger than the sum of its proper divisors (1205557).

478448123 is a wasteful number, since it uses less digits than its factorization.

478448123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205556.

The product of its digits is 172032, while the sum is 41.

The square root of 478448123 is about 21873.4570427265. The cubic root of 478448123 is about 782.1288126448.

The spelling of 478448123 in words is "four hundred seventy-eight million, four hundred forty-eight thousand, one hundred twenty-three".