393429013 has 2 divisors, whose sum is σ = 393429014. Its totient is φ = 393429012.

The previous prime is 393428999. The next prime is 393429019. The reversal of 393429013 is 310924393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253669329 + 139759684 = 15927^2 + 11822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393429013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 393429013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393429019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196714506 + 196714507.

It is an arithmetic number, because the mean of its divisors is an integer number (196714507).

Almost surely, 2^393429013 is an apocalyptic number.

It is an amenable number.

393429013 is a deficient number, since it is larger than the sum of its proper divisors (1).

393429013 is an equidigital number, since it uses as much as digits as its factorization.

393429013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 393429013 is about 19835.0450717915. The cubic root of 393429013 is about 732.7493824853.

The spelling of 393429013 in words is "three hundred ninety-three million, four hundred twenty-nine thousand, thirteen".