487997 has 2 divisors, whose sum is σ = 487998. Its totient is φ = 487996.

The previous prime is 487979. The next prime is 488003. The reversal of 487997 is 799784.

Together with previous prime (487979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436921 + 51076 = 661^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 487997 - 2⁶ = 487933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243998 + 243999.

It is an arithmetic number, because the mean of its divisors is an integer number (243999).

2⁴⁸⁷⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

487997 is a deficient number, since it is larger than the sum of its proper divisors (1).

487997 is an equidigital number, since it uses as much as digits as its factorization.

487997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The square root of 487997 is about 698.5678206159. The cubic root of 487997 is about 78.7297823299.

The spelling of 487997 in words is "four hundred eighty-seven thousand, nine hundred ninety-seven".