478485845 has 8 divisors (see below), whose sum is σ = 574415064. Its totient is φ = 382633984.

The previous prime is 478485841. The next prime is 478485851. The reversal of 478485845 is 548584874.

It can be written as a sum of positive squares in 4 ways, for example, as 75359761 + 403126084 = 8681^2 + 20078^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 478485845 - 2² = 478485841 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478485841) 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, 4724 + ... + 31293.

It is an arithmetic number, because the mean of its divisors is an integer number (71801883).

Almost surely, 2^478485845 is an apocalyptic number.

It is an amenable number.

478485845 is a deficient number, since it is larger than the sum of its proper divisors (95929219).

478485845 is a wasteful number, since it uses less digits than its factorization.

478485845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38679.

The product of its digits is 5734400, while the sum is 53.

The square root of 478485845 is about 21874.3193036949. The cubic root of 478485845 is about 782.1493670765.

The spelling of 478485845 in words is "four hundred seventy-eight million, four hundred eighty-five thousand, eight hundred forty-five".