478477845 has 24 divisors (see below), whose sum is σ = 836979000. Its totient is φ = 252844416.

The previous prime is 478477841. The next prime is 478477859. The reversal of 478477845 is 548774874.

It can be written as a sum of positive squares in 4 ways, for example, as 38862756 + 439615089 = 6234^2 + 20967^2 .

It is not a de Polignac number, because 478477845 - 2² = 478477841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478477791 and 478477800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478477841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43870 + ... + 53679.

It is an arithmetic number, because the mean of its divisors is an integer number (34874125).

Almost surely, 2^478477845 is an apocalyptic number.

478477845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

478477845 is a deficient number, since it is larger than the sum of its proper divisors (358501155).

478477845 is a wasteful number, since it uses less digits than its factorization.

478477845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97669 (or 97666 counting only the distinct ones).

The product of its digits is 7024640, while the sum is 54.

The square root of 478477845 is about 21874.1364400975. The cubic root of 478477845 is about 782.1450080274.

The spelling of 478477845 in words is "four hundred seventy-eight million, four hundred seventy-seven thousand, eight hundred forty-five".