480821669 has 2 divisors, whose sum is σ = 480821670. Its totient is φ = 480821668.

The previous prime is 480821603. The next prime is 480821683. The reversal of 480821669 is 966128084.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365001025 + 115820644 = 19105^2 + 10762^2 .

It is a cyclic number.

It is not a de Polignac number, because 480821669 - 2¹² = 480817573 is a prime.

It is a super-3 number, since 3×480821669³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480821069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240410834 + 240410835.

It is an arithmetic number, because the mean of its divisors is an integer number (240410835).

Almost surely, 2^480821669 is an apocalyptic number.

It is an amenable number.

480821669 is a deficient number, since it is larger than the sum of its proper divisors (1).

480821669 is an equidigital number, since it uses as much as digits as its factorization.

480821669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 480821669 is about 21927.6462257124. The cubic root of 480821669 is about 783.4200409628.

The spelling of 480821669 in words is "four hundred eighty million, eight hundred twenty-one thousand, six hundred sixty-nine".