487193081 has 2 divisors, whose sum is σ = 487193082. Its totient is φ = 487193080.

The previous prime is 487193039. The next prime is 487193093. The reversal of 487193081 is 180391784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416364025 + 70829056 = 20405^2 + 8416^2 .

It is a cyclic number.

It is not a de Polignac number, because 487193081 - 2¹⁸ = 486930937 is a prime.

It is a super-2 number, since 2×487193081² = 474714196348545122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (487193281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243596540 + 243596541.

It is an arithmetic number, because the mean of its divisors is an integer number (243596541).

Almost surely, 2^487193081 is an apocalyptic number.

It is an amenable number.

487193081 is a deficient number, since it is larger than the sum of its proper divisors (1).

487193081 is an equidigital number, since it uses as much as digits as its factorization.

487193081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 487193081 is about 22072.4507248289. The cubic root of 487193081 is about 786.8652581028.

The spelling of 487193081 in words is "four hundred eighty-seven million, one hundred ninety-three thousand, eighty-one".