461921329 has 2 divisors, whose sum is σ = 461921330. Its totient is φ = 461921328.

The previous prime is 461921321. The next prime is 461921371. The reversal of 461921329 is 923129164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380055025 + 81866304 = 19495^2 + 9048^2 .

It is a cyclic number.

It is not a de Polignac number, because 461921329 - 2³ = 461921321 is a prime.

It is not a weakly prime, because it can be changed into another prime (461921321) 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, 230960664 + 230960665.

It is an arithmetic number, because the mean of its divisors is an integer number (230960665).

Almost surely, 2^461921329 is an apocalyptic number.

It is an amenable number.

461921329 is a deficient number, since it is larger than the sum of its proper divisors (1).

461921329 is an equidigital number, since it uses as much as digits as its factorization.

461921329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 461921329 is about 21492.3551292082. The cubic root of 461921329 is about 773.0175228806.

The spelling of 461921329 in words is "four hundred sixty-one million, nine hundred twenty-one thousand, three hundred twenty-nine".