461666329 has 4 divisors (see below), whose sum is σ = 463242276. Its totient is φ = 460090384.

The previous prime is 461666321. The next prime is 461666333. The reversal of 461666329 is 923666164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 408040000 + 53626329 = 20200^2 + 7323^2 .

It is a cyclic number.

It is not a de Polignac number, because 461666329 - 2³ = 461666321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461666321) 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 in 3 ways as a sum of consecutive naturals, for example, 787534 + ... + 788119.

It is an arithmetic number, because the mean of its divisors is an integer number (115810569).

Almost surely, 2^461666329 is an apocalyptic number.

It is an amenable number.

461666329 is a deficient number, since it is larger than the sum of its proper divisors (1575947).

461666329 is a wasteful number, since it uses less digits than its factorization.

461666329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575946.

The product of its digits is 279936, while the sum is 43.

The square root of 461666329 is about 21486.4219683036. The cubic root of 461666329 is about 772.8752506365.

The spelling of 461666329 in words is "four hundred sixty-one million, six hundred sixty-six thousand, three hundred twenty-nine".