8428794347 has 2 divisors, whose sum is σ = 8428794348. Its totient is φ = 8428794346.

The previous prime is 8428794343. The next prime is 8428794371. The reversal of 8428794347 is 7434978248.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8428794347 - 2² = 8428794343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8428794292 and 8428794301.

It is not a weakly prime, because it can be changed into another prime (8428794343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4214397173 + 4214397174.

It is an arithmetic number, because the mean of its divisors is an integer number (4214397174).

Almost surely, 2^8428794347 is an apocalyptic number.

8428794347 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428794347 is an equidigital number, since it uses as much as digits as its factorization.

8428794347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10838016, while the sum is 56.

The square root of 8428794347 is about 91808.4655519304. The cubic root of 8428794347 is about 2035.1128003042.

The spelling of 8428794347 in words is "eight billion, four hundred twenty-eight million, seven hundred ninety-four thousand, three hundred forty-seven".