479494789 has 2 divisors, whose sum is σ = 479494790. Its totient is φ = 479494788.

The previous prime is 479494759. The next prime is 479494819. The reversal of 479494789 is 987494974.

It is a balanced prime because it is at equal distance from previous prime (479494759) and next prime (479494819).

It can be written as a sum of positive squares in only one way, i.e., 362140900 + 117353889 = 19030^2 + 10833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479494789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479494759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239747394 + 239747395.

It is an arithmetic number, because the mean of its divisors is an integer number (239747395).

Almost surely, 2^479494789 is an apocalyptic number.

It is an amenable number.

479494789 is a deficient number, since it is larger than the sum of its proper divisors (1).

479494789 is an equidigital number, since it uses as much as digits as its factorization.

479494789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 61.

The square root of 479494789 is about 21897.3694538865. The cubic root of 479494789 is about 782.6987326078.

The spelling of 479494789 in words is "four hundred seventy-nine million, four hundred ninety-four thousand, seven hundred eighty-nine".