461016621 has 36 divisors (see below), whose sum is σ = 728459316. Its totient is φ = 280800000.

The previous prime is 461016607. The next prime is 461016629. The reversal of 461016621 is 126610164.

It can be written as a sum of positive squares in 6 ways, for example, as 2842596 + 458174025 = 1686^2 + 21405^2 .

It is not a de Polignac number, because 461016621 - 2²⁶ = 393907757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461016629) 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 in 35 ways as a sum of consecutive naturals, for example, 152121 + ... + 155121.

It is an arithmetic number, because the mean of its divisors is an integer number (20234981).

Almost surely, 2^461016621 is an apocalyptic number.

It is an amenable number.

461016621 is a deficient number, since it is larger than the sum of its proper divisors (267442695).

461016621 is a wasteful number, since it uses less digits than its factorization.

461016621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 461016621 is about 21471.2976086682. The cubic root of 461016621 is about 772.5125218695.

Adding to 461016621 its reverse (126610164), we get a palindrome (587626785).

The spelling of 461016621 in words is "four hundred sixty-one million, sixteen thousand, six hundred twenty-one".