487975849 has 2 divisors, whose sum is σ = 487975850. Its totient is φ = 487975848.

The previous prime is 487975801. The next prime is 487975853. The reversal of 487975849 is 948579784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381225625 + 106750224 = 19525^2 + 10332^2 .

It is a cyclic number.

It is not a de Polignac number, because 487975849 - 2¹³ = 487967657 is a prime.

It is not a weakly prime, because it can be changed into another prime (487975249) 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, 243987924 + 243987925.

It is an arithmetic number, because the mean of its divisors is an integer number (243987925).

Almost surely, 2^487975849 is an apocalyptic number.

It is an amenable number.

487975849 is a deficient number, since it is larger than the sum of its proper divisors (1).

487975849 is an equidigital number, since it uses as much as digits as its factorization.

487975849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 61.

The square root of 487975849 is about 22090.1753954105. The cubic root of 487975849 is about 787.2864486543.

The spelling of 487975849 in words is "four hundred eighty-seven million, nine hundred seventy-five thousand, eight hundred forty-nine".