478756485 has 12 divisors (see below), whose sum is σ = 829844652. Its totient is φ = 255336768.

The previous prime is 478756483. The next prime is 478756507. The reversal of 478756485 is 584657874.

478756485 is a `hidden beast` number, since 4 + 78 + 7 + 564 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 139570596 + 339185889 = 11814^2 + 18417^2 .

It is not a de Polignac number, because 478756485 - 2¹ = 478756483 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478756483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5319472 + ... + 5319561.

It is an arithmetic number, because the mean of its divisors is an integer number (69153721).

Almost surely, 2^478756485 is an apocalyptic number.

478756485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

478756485 is a deficient number, since it is larger than the sum of its proper divisors (351088167).

478756485 is a wasteful number, since it uses less digits than its factorization.

478756485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10639044 (or 10639041 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The square root of 478756485 is about 21880.5046788231. The cubic root of 478756485 is about 782.2968050897.

The spelling of 478756485 in words is "four hundred seventy-eight million, seven hundred fifty-six thousand, four hundred eighty-five".