477904489 has 2 divisors, whose sum is σ = 477904490. Its totient is φ = 477904488.

The previous prime is 477904481. The next prime is 477904513. The reversal of 477904489 is 984409774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358723600 + 119180889 = 18940^2 + 10917^2 .

It is a cyclic number.

It is not a de Polignac number, because 477904489 - 2³ = 477904481 is a prime.

It is a super-2 number, since 2×477904489² = 456785401212702242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (477904481) 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, 238952244 + 238952245.

It is an arithmetic number, because the mean of its divisors is an integer number (238952245).

Almost surely, 2^477904489 is an apocalyptic number.

It is an amenable number.

477904489 is a deficient number, since it is larger than the sum of its proper divisors (1).

477904489 is an equidigital number, since it uses as much as digits as its factorization.

477904489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 477904489 is about 21861.0267142236. The cubic root of 477904489 is about 781.8324705499.

The spelling of 477904489 in words is "four hundred seventy-seven million, nine hundred four thousand, four hundred eighty-nine".