383426947 has 2 divisors, whose sum is σ = 383426948. Its totient is φ = 383426946.

The previous prime is 383426933. The next prime is 383426971. The reversal of 383426947 is 749624383.

It is a weak prime.

It is an emirp because it is prime and its reverse (749624383) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383426947 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 383426897 and 383426906.

It is not a weakly prime, because it can be changed into another prime (383421947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191713473 + 191713474.

It is an arithmetic number, because the mean of its divisors is an integer number (191713474).

Almost surely, 2^383426947 is an apocalyptic number.

383426947 is a deficient number, since it is larger than the sum of its proper divisors (1).

383426947 is an equidigital number, since it uses as much as digits as its factorization.

383426947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 46.

The square root of 383426947 is about 19581.2907388660. The cubic root of 383426947 is about 726.4864924015.

The spelling of 383426947 in words is "three hundred eighty-three million, four hundred twenty-six thousand, nine hundred forty-seven".