8455420943 has 2 divisors, whose sum is σ = 8455420944. Its totient is φ = 8455420942.

The previous prime is 8455420913. The next prime is 8455420969. The reversal of 8455420943 is 3490245548.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8455420943 is a prime.

It is a super-3 number, since 3×8455420943³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8455420894 and 8455420903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8455420913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227710471 + 4227710472.

It is an arithmetic number, because the mean of its divisors is an integer number (4227710472).

Almost surely, 2^8455420943 is an apocalyptic number.

8455420943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8455420943 is an equidigital number, since it uses as much as digits as its factorization.

8455420943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 8455420943 is about 91953.3628694459. The cubic root of 8455420943 is about 2037.2535242669.

The spelling of 8455420943 in words is "eight billion, four hundred fifty-five million, four hundred twenty thousand, nine hundred forty-three".