426944347 has 2 divisors, whose sum is σ = 426944348. Its totient is φ = 426944346.

The previous prime is 426944279. The next prime is 426944359. The reversal of 426944347 is 743449624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426944347 is a prime.

It is not a weakly prime, because it can be changed into another prime (426944047) 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, 213472173 + 213472174.

It is an arithmetic number, because the mean of its divisors is an integer number (213472174).

Almost surely, 2^426944347 is an apocalyptic number.

426944347 is a deficient number, since it is larger than the sum of its proper divisors (1).

426944347 is an equidigital number, since it uses as much as digits as its factorization.

426944347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 43.

The square root of 426944347 is about 20662.6316571728. The cubic root of 426944347 is about 752.9921046869.

The spelling of 426944347 in words is "four hundred twenty-six million, nine hundred forty-four thousand, three hundred forty-seven".