486721 has 2 divisors, whose sum is σ = 486722. Its totient is φ = 486720.

The previous prime is 486713. The next prime is 486757. The reversal of 486721 is 127684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408321 + 78400 = 639^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 486721 - 2³ = 486713 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 486721.

It is not a weakly prime, because it can be changed into another prime (486781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243360 + 243361.

It is an arithmetic number, because the mean of its divisors is an integer number (243361).

2⁴⁸⁶⁷²¹ is an apocalyptic number.

It is an amenable number.

486721 is a deficient number, since it is larger than the sum of its proper divisors (1).

486721 is an equidigital number, since it uses as much as digits as its factorization.

486721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The square root of 486721 is about 697.6539256680. The cubic root of 486721 is about 78.6611023387.

The spelling of 486721 in words is "four hundred eighty-six thousand, seven hundred twenty-one".