487665733 has 2 divisors, whose sum is σ = 487665734. Its totient is φ = 487665732.

The previous prime is 487665691. The next prime is 487665751. The reversal of 487665733 is 337566784.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482549089 + 5116644 = 21967^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 487665733 - 2²¹ = 485568581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488665733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243832866 + 243832867.

It is an arithmetic number, because the mean of its divisors is an integer number (243832867).

Almost surely, 2^487665733 is an apocalyptic number.

It is an amenable number.

487665733 is a deficient number, since it is larger than the sum of its proper divisors (1).

487665733 is an equidigital number, since it uses as much as digits as its factorization.

487665733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 49.

The square root of 487665733 is about 22083.1549602859. The cubic root of 487665733 is about 787.1196358476.

The spelling of 487665733 in words is "four hundred eighty-seven million, six hundred sixty-five thousand, seven hundred thirty-three".