478471807 has 8 divisors (see below), whose sum is σ = 523163520. Its totient is φ = 433979160.

The previous prime is 478471801. The next prime is 478471811. The reversal of 478471807 is 708174874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478471807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478471801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44713 + ... + 54370.

It is an arithmetic number, because the mean of its divisors is an integer number (65395440).

Almost surely, 2^478471807 is an apocalyptic number.

478471807 is a deficient number, since it is larger than the sum of its proper divisors (44691713).

478471807 is a wasteful number, since it uses less digits than its factorization.

478471807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99533.

The product of its (nonzero) digits is 351232, while the sum is 46.

The square root of 478471807 is about 21873.9984227850. The cubic root of 478471807 is about 782.1417180029.

The spelling of 478471807 in words is "four hundred seventy-eight million, four hundred seventy-one thousand, eight hundred seven".