486491 has 2 divisors, whose sum is σ = 486492. Its totient is φ = 486490.

The previous prime is 486481. The next prime is 486503. The reversal of 486491 is 194684.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-486491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (486481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243245 + 243246.

It is an arithmetic number, because the mean of its divisors is an integer number (243246).

2⁴⁸⁶⁴⁹¹ is an apocalyptic number.

486491 is a deficient number, since it is larger than the sum of its proper divisors (1).

486491 is an equidigital number, since it uses as much as digits as its factorization.

486491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 486491 is about 697.4890680147. The cubic root of 486491 is about 78.6487099523.

The spelling of 486491 in words is "four hundred eighty-six thousand, four hundred ninety-one".