486400489 has 2 divisors, whose sum is σ = 486400490. Its totient is φ = 486400488.

The previous prime is 486400471. The next prime is 486400529. The reversal of 486400489 is 984004684.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478515625 + 7884864 = 21875^2 + 2808^2 .

It is a cyclic number.

It is not a de Polignac number, because 486400489 - 2⁵ = 486400457 is a prime.

It is not a weakly prime, because it can be changed into another prime (486400429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243200244 + 243200245.

It is an arithmetic number, because the mean of its divisors is an integer number (243200245).

Almost surely, 2^486400489 is an apocalyptic number.

It is an amenable number.

486400489 is a deficient number, since it is larger than the sum of its proper divisors (1).

486400489 is an equidigital number, since it uses as much as digits as its factorization.

486400489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 486400489 is about 22054.4890895255. The cubic root of 486400489 is about 786.4383215405.

The spelling of 486400489 in words is "four hundred eighty-six million, four hundred thousand, four hundred eighty-nine".