489677 has 2 divisors, whose sum is σ = 489678. Its totient is φ = 489676.

The previous prime is 489673. The next prime is 489679. The reversal of 489677 is 776984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417316 + 72361 = 646^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 489677 - 2² = 489673 is a prime.

Together with 489679, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244838 + 244839.

It is an arithmetic number, because the mean of its divisors is an integer number (244839).

2⁴⁸⁹⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

489677 is a deficient number, since it is larger than the sum of its proper divisors (1).

489677 is an equidigital number, since it uses as much as digits as its factorization.

489677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 489677 is about 699.7692476810. The cubic root of 489677 is about 78.8200250583.

The spelling of 489677 in words is "four hundred eighty-nine thousand, six hundred seventy-seven".