7843430461 has 2 divisors, whose sum is σ = 7843430462. Its totient is φ = 7843430460.

The previous prime is 7843430401. The next prime is 7843430467. The reversal of 7843430461 is 1640343487.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7077856900 + 765573561 = 84130^2 + 27669^2 .

It is a cyclic number.

It is not a de Polignac number, because 7843430461 - 2⁹ = 7843429949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7843430467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3921715230 + 3921715231.

It is an arithmetic number, because the mean of its divisors is an integer number (3921715231).

Almost surely, 2^7843430461 is an apocalyptic number.

It is an amenable number.

7843430461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7843430461 is an equidigital number, since it uses as much as digits as its factorization.

7843430461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 7843430461 is about 88563.1439200303. The cubic root of 7843430461 is about 1986.8664825591.

The spelling of 7843430461 in words is "seven billion, eight hundred forty-three million, four hundred thirty thousand, four hundred sixty-one".