461623289 has 2 divisors, whose sum is σ = 461623290. Its totient is φ = 461623288.

The previous prime is 461623273. The next prime is 461623369. The reversal of 461623289 is 982326164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285610000 + 176013289 = 16900^2 + 13267^2 .

It is a cyclic number.

It is not a de Polignac number, because 461623289 - 2⁴ = 461623273 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (461523289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230811644 + 230811645.

It is an arithmetic number, because the mean of its divisors is an integer number (230811645).

Almost surely, 2^461623289 is an apocalyptic number.

It is an amenable number.

461623289 is a deficient number, since it is larger than the sum of its proper divisors (1).

461623289 is an equidigital number, since it uses as much as digits as its factorization.

461623289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 461623289 is about 21485.4203822034. The cubic root of 461623289 is about 772.8512321463.

The spelling of 461623289 in words is "four hundred sixty-one million, six hundred twenty-three thousand, two hundred eighty-nine".