393424999696 has 45 divisors (see below), whose sum is σ = 766685687439. Its totient is φ = 195577202688.

The previous prime is 393424999691. The next prime is 393424999717. The reversal of 393424999696 is 696999424393.

The square root of 393424999696 is 627236.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 88544334096 + 304880665600 = 297564^2 + 552160^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393424999691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 584583616 + ... + 584584288.

Almost surely, 2^393424999696 is an apocalyptic number.

393424999696 is the 627236-th square number.

It is an amenable number.

393424999696 is a deficient number, since it is larger than the sum of its proper divisors (373260687743).

393424999696 is an frugal number, since it uses more digits than its factorization.

393424999696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 908 counting only the distinct ones).

The product of its digits is 612220032, while the sum is 73.

The spelling of 393424999696 in words is "three hundred ninety-three billion, four hundred twenty-four million, nine hundred ninety-nine thousand, six hundred ninety-six".