478981427 has 2 divisors, whose sum is σ = 478981428. Its totient is φ = 478981426.

The previous prime is 478981421. The next prime is 478981453. The reversal of 478981427 is 724189874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478981427 - 2¹⁴ = 478965043 is a prime.

It is not a weakly prime, because it can be changed into another prime (478981421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239490713 + 239490714.

It is an arithmetic number, because the mean of its divisors is an integer number (239490714).

Almost surely, 2^478981427 is an apocalyptic number.

478981427 is a deficient number, since it is larger than the sum of its proper divisors (1).

478981427 is an equidigital number, since it uses as much as digits as its factorization.

478981427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 50.

The square root of 478981427 is about 21885.6443131108. The cubic root of 478981427 is about 782.4193056795.

The spelling of 478981427 in words is "four hundred seventy-eight million, nine hundred eighty-one thousand, four hundred twenty-seven".