476066989 has 2 divisors, whose sum is σ = 476066990. Its totient is φ = 476066988.

The previous prime is 476066971. The next prime is 476067017. The reversal of 476066989 is 989660674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302934025 + 173132964 = 17405^2 + 13158^2 .

It is a cyclic number.

It is not a de Polignac number, because 476066989 - 2⁹ = 476066477 is a prime.

It is a super-2 number, since 2×476066989² = 453279556031052242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476066089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238033494 + 238033495.

It is an arithmetic number, because the mean of its divisors is an integer number (238033495).

Almost surely, 2^476066989 is an apocalyptic number.

It is an amenable number.

476066989 is a deficient number, since it is larger than the sum of its proper divisors (1).

476066989 is an equidigital number, since it uses as much as digits as its factorization.

476066989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 476066989 is about 21818.9593931516. The cubic root of 476066989 is about 780.8291582686.

The spelling of 476066989 in words is "four hundred seventy-six million, sixty-six thousand, nine hundred eighty-nine".