480661 has 2 divisors, whose sum is σ = 480662. Its totient is φ = 480660.

The previous prime is 480647. The next prime is 480707. The reversal of 480661 is 166084.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463761 + 16900 = 681^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 480661 - 2⁷ = 480533 is a prime.

It is a super-3 number, since 3×480661³ = 333148537965134343, which contains 333 as substring.

480661 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240330 + 240331.

It is an arithmetic number, because the mean of its divisors is an integer number (240331).

2⁴⁸⁰⁶⁶¹ is an apocalyptic number.

It is an amenable number.

480661 is a deficient number, since it is larger than the sum of its proper divisors (1).

480661 is an equidigital number, since it uses as much as digits as its factorization.

480661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 480661 is about 693.2971945710. The cubic root of 480661 is about 78.3332769981. Note that the first 3 decimals are identical.

The spelling of 480661 in words is "four hundred eighty thousand, six hundred sixty-one".