487818481 has 2 divisors, whose sum is σ = 487818482. Its totient is φ = 487818480.

The previous prime is 487818469. The next prime is 487818571. The reversal of 487818481 is 184818784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263088400 + 224730081 = 16220^2 + 14991^2 .

It is a cyclic number.

It is not a de Polignac number, because 487818481 - 2²¹ = 485721329 is a prime.

It is a super-2 number, since 2×487818481² = 475933740810294722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (487878481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243909240 + 243909241.

It is an arithmetic number, because the mean of its divisors is an integer number (243909241).

Almost surely, 2^487818481 is an apocalyptic number.

It is an amenable number.

487818481 is a deficient number, since it is larger than the sum of its proper divisors (1).

487818481 is an equidigital number, since it uses as much as digits as its factorization.

487818481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 458752, while the sum is 49.

The square root of 487818481 is about 22086.6131627282. The cubic root of 487818481 is about 787.2018085267.

The spelling of 487818481 in words is "four hundred eighty-seven million, eight hundred eighteen thousand, four hundred eighty-one".