476172089 has 2 divisors, whose sum is σ = 476172090. Its totient is φ = 476172088.

The previous prime is 476172077. The next prime is 476172097. The reversal of 476172089 is 980271674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335512489 + 140659600 = 18317^2 + 11860^2 .

It is a cyclic number.

It is not a de Polignac number, because 476172089 - 2²⁰ = 475123513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (476172019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238086044 + 238086045.

It is an arithmetic number, because the mean of its divisors is an integer number (238086045).

Almost surely, 2^476172089 is an apocalyptic number.

It is an amenable number.

476172089 is a deficient number, since it is larger than the sum of its proper divisors (1).

476172089 is an equidigital number, since it uses as much as digits as its factorization.

476172089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 476172089 is about 21821.3677160713. The cubic root of 476172089 is about 780.8866145427.

The spelling of 476172089 in words is "four hundred seventy-six million, one hundred seventy-two thousand, eighty-nine".