478487427 has 16 divisors (see below), whose sum is σ = 702743808. Its totient is φ = 287174880.

The previous prime is 478487419. The next prime is 478487453. The reversal of 478487427 is 724784874.

It is not a de Polignac number, because 478487427 - 2³ = 478487419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478487427.

It is not an unprimeable number, because it can be changed into a prime (478487417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66988 + ... + 73785.

It is an arithmetic number, because the mean of its divisors is an integer number (43921488).

Almost surely, 2^478487427 is an apocalyptic number.

478487427 is a deficient number, since it is larger than the sum of its proper divisors (224256381).

478487427 is a wasteful number, since it uses less digits than its factorization.

478487427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140890.

The product of its digits is 2809856, while the sum is 51.

The square root of 478487427 is about 21874.3554647903. The cubic root of 478487427 is about 782.1502290726.

The spelling of 478487427 in words is "four hundred seventy-eight million, four hundred eighty-seven thousand, four hundred twenty-seven".