481087289 has 2 divisors, whose sum is σ = 481087290. Its totient is φ = 481087288.

The previous prime is 481087279. The next prime is 481087291. The reversal of 481087289 is 982780184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 450925225 + 30162064 = 21235^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 481087289 - 2⁴ = 481087273 is a prime.

Together with 481087291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (481087249) 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, 240543644 + 240543645.

It is an arithmetic number, because the mean of its divisors is an integer number (240543645).

Almost surely, 2^481087289 is an apocalyptic number.

It is an amenable number.

481087289 is a deficient number, since it is larger than the sum of its proper divisors (1).

481087289 is an equidigital number, since it uses as much as digits as its factorization.

481087289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 481087289 is about 21933.7021270920. The cubic root of 481087289 is about 783.5642758130.

The spelling of 481087289 in words is "four hundred eighty-one million, eighty-seven thousand, two hundred eighty-nine".