383480521 has 2 divisors, whose sum is σ = 383480522. Its totient is φ = 383480520.

The previous prime is 383480497. The next prime is 383480551. The reversal of 383480521 is 125084383.

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., 331640521 + 51840000 = 18211^2 + 7200^2 .

It is a cyclic number.

It is not a de Polignac number, because 383480521 - 2⁷ = 383480393 is a prime.

It is not a weakly prime, because it can be changed into another prime (383480551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191740260 + 191740261.

It is an arithmetic number, because the mean of its divisors is an integer number (191740261).

Almost surely, 2^383480521 is an apocalyptic number.

It is an amenable number.

383480521 is a deficient number, since it is larger than the sum of its proper divisors (1).

383480521 is an equidigital number, since it uses as much as digits as its factorization.

383480521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 383480521 is about 19582.6586805776. The cubic root of 383480521 is about 726.5203267256.

The spelling of 383480521 in words is "three hundred eighty-three million, four hundred eighty thousand, five hundred twenty-one".