461891743 has 2 divisors, whose sum is σ = 461891744. Its totient is φ = 461891742.

The previous prime is 461891719. The next prime is 461891747. The reversal of 461891743 is 347198164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461891743 - 2⁵ = 461891711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461891743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461891747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230945871 + 230945872.

It is an arithmetic number, because the mean of its divisors is an integer number (230945872).

Almost surely, 2^461891743 is an apocalyptic number.

461891743 is a deficient number, since it is larger than the sum of its proper divisors (1).

461891743 is an equidigital number, since it uses as much as digits as its factorization.

461891743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 461891743 is about 21491.6668269355. Note that the first 3 decimals coincide. The cubic root of 461891743 is about 773.0010186382.

The spelling of 461891743 in words is "four hundred sixty-one million, eight hundred ninety-one thousand, seven hundred forty-three".