478988479 has 2 divisors, whose sum is σ = 478988480. Its totient is φ = 478988478.

The previous prime is 478988473. The next prime is 478988513. The reversal of 478988479 is 974889874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478988479 - 2¹⁹ = 478464191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478988479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478988473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239494239 + 239494240.

It is an arithmetic number, because the mean of its divisors is an integer number (239494240).

Almost surely, 2^478988479 is an apocalyptic number.

478988479 is a deficient number, since it is larger than the sum of its proper divisors (1).

478988479 is an equidigital number, since it uses as much as digits as its factorization.

478988479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 64.

The square root of 478988479 is about 21885.8054226935. The cubic root of 478988479 is about 782.4231454901.

The spelling of 478988479 in words is "four hundred seventy-eight million, nine hundred eighty-eight thousand, four hundred seventy-nine".