478147589 has 2 divisors, whose sum is σ = 478147590. Its totient is φ = 478147588.

The previous prime is 478147567. The next prime is 478147603. The reversal of 478147589 is 985741874.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330330625 + 147816964 = 18175^2 + 12158^2 .

It is a cyclic number.

It is not a de Polignac number, because 478147589 - 2⁸ = 478147333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478147589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478147889) 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 as a sum of consecutive naturals, namely, 239073794 + 239073795.

It is an arithmetic number, because the mean of its divisors is an integer number (239073795).

Almost surely, 2^478147589 is an apocalyptic number.

It is an amenable number.

478147589 is a deficient number, since it is larger than the sum of its proper divisors (1).

478147589 is an equidigital number, since it uses as much as digits as its factorization.

478147589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 53.

The square root of 478147589 is about 21866.5861304411. The cubic root of 478147589 is about 781.9650153435.

The spelling of 478147589 in words is "four hundred seventy-eight million, one hundred forty-seven thousand, five hundred eighty-nine".