486391 has 2 divisors, whose sum is σ = 486392. Its totient is φ = 486390.

The previous prime is 486389. The next prime is 486397. The reversal of 486391 is 193684.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 486391 - 2¹ = 486389 is a prime.

Together with 486389, it forms a pair of twin primes.

486391 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243195 + 243196.

It is an arithmetic number, because the mean of its divisors is an integer number (243196).

2⁴⁸⁶³⁹¹ is an apocalyptic number.

486391 is a deficient number, since it is larger than the sum of its proper divisors (1).

486391 is an equidigital number, since it uses as much as digits as its factorization.

486391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 486391 is about 697.4173786191. The cubic root of 486391 is about 78.6433207400.

The spelling of 486391 in words is "four hundred eighty-six thousand, three hundred ninety-one".