461632321 has 2 divisors, whose sum is σ = 461632322. Its totient is φ = 461632320.

The previous prime is 461632291. The next prime is 461632351. The reversal of 461632321 is 123236164.

It is a balanced prime because it is at equal distance from previous prime (461632291) and next prime (461632351).

It can be written as a sum of positive squares in only one way, i.e., 403567921 + 58064400 = 20089^2 + 7620^2 .

It is a cyclic number.

It is not a de Polignac number, because 461632321 - 2⁵ = 461632289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461632321.

It is not a weakly prime, because it can be changed into another prime (461632351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230816160 + 230816161.

It is an arithmetic number, because the mean of its divisors is an integer number (230816161).

Almost surely, 2^461632321 is an apocalyptic number.

It is an amenable number.

461632321 is a deficient number, since it is larger than the sum of its proper divisors (1).

461632321 is an equidigital number, since it uses as much as digits as its factorization.

461632321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 461632321 is about 21485.6305702206. The cubic root of 461632321 is about 772.8562725815.

Adding to 461632321 its reverse (123236164), we get a palindrome (584868485).

It can be divided in two parts, 46163 and 2321, that added together give a palindrome (48484).

The spelling of 461632321 in words is "four hundred sixty-one million, six hundred thirty-two thousand, three hundred twenty-one".