476342989 has 2 divisors, whose sum is σ = 476342990. Its totient is φ = 476342988.

The previous prime is 476342983. The next prime is 476343011. The reversal of 476342989 is 989243674.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290429764 + 185913225 = 17042^2 + 13635^2 .

It is a cyclic number.

It is not a de Polignac number, because 476342989 - 2⁵ = 476342957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (476342983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238171494 + 238171495.

It is an arithmetic number, because the mean of its divisors is an integer number (238171495).

Almost surely, 2^476342989 is an apocalyptic number.

It is an amenable number.

476342989 is a deficient number, since it is larger than the sum of its proper divisors (1).

476342989 is an equidigital number, since it uses as much as digits as its factorization.

476342989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The square root of 476342989 is about 21825.2832513120. The cubic root of 476342989 is about 780.9800244415.

The spelling of 476342989 in words is "four hundred seventy-six million, three hundred forty-two thousand, nine hundred eighty-nine".