393482939 has 2 divisors, whose sum is σ = 393482940. Its totient is φ = 393482938.

The previous prime is 393482909. The next prime is 393482983. The reversal of 393482939 is 939284393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 393482939 - 2¹⁶ = 393417403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (393482909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196741469 + 196741470.

It is an arithmetic number, because the mean of its divisors is an integer number (196741470).

Almost surely, 2^393482939 is an apocalyptic number.

393482939 is a deficient number, since it is larger than the sum of its proper divisors (1).

393482939 is an equidigital number, since it uses as much as digits as its factorization.

393482939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 50.

The square root of 393482939 is about 19836.4043868842. The cubic root of 393482939 is about 732.7828594588.

The spelling of 393482939 in words is "three hundred ninety-three million, four hundred eighty-two thousand, nine hundred thirty-nine".