393442059403 has 2 divisors, whose sum is σ = 393442059404. Its totient is φ = 393442059402.

The previous prime is 393442059391. The next prime is 393442059457. The reversal of 393442059403 is 304950244393.

It is a weak prime.

It is an emirp because it is prime and its reverse (304950244393) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393442059403 is a prime.

It is not a weakly prime, because it can be changed into another prime (393442059473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196721029701 + 196721029702.

It is an arithmetic number, because the mean of its divisors is an integer number (196721029702).

Almost surely, 2^393442059403 is an apocalyptic number.

393442059403 is a deficient number, since it is larger than the sum of its proper divisors (1).

393442059403 is an equidigital number, since it uses as much as digits as its factorization.

393442059403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 393442059403 in words is "three hundred ninety-three billion, four hundred forty-two million, fifty-nine thousand, four hundred three".