461243623 has 2 divisors, whose sum is σ = 461243624. Its totient is φ = 461243622.

The previous prime is 461243621. The next prime is 461243647. The reversal of 461243623 is 326342164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461243623 - 2¹ = 461243621 is a prime.

It is a super-2 number, since 2×461243623² = 425491359516332258, which contains 22 as substring.

Together with 461243621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461243621) 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 as a sum of consecutive naturals, namely, 230621811 + 230621812.

It is an arithmetic number, because the mean of its divisors is an integer number (230621812).

Almost surely, 2^461243623 is an apocalyptic number.

461243623 is a deficient number, since it is larger than the sum of its proper divisors (1).

461243623 is an equidigital number, since it uses as much as digits as its factorization.

461243623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 461243623 is about 21476.5831314015. The cubic root of 461243623 is about 772.6392946762.

Adding to 461243623 its reverse (326342164), we get a palindrome (787585787).

The spelling of 461243623 in words is "four hundred sixty-one million, two hundred forty-three thousand, six hundred twenty-three".