693939397 has 8 divisors (see below), whose sum is σ = 703382400. Its totient is φ = 684513024.

The previous prime is 693939377. The next prime is 693939401. The reversal of 693939397 is 793939396.

693939397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-693939397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (693939317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95973 + ... + 102949.

It is an arithmetic number, because the mean of its divisors is an integer number (87922800).

Almost surely, 2^693939397 is an apocalyptic number.

It is an amenable number.

693939397 is a deficient number, since it is larger than the sum of its proper divisors (9443003).

693939397 is a wasteful number, since it uses less digits than its factorization.

693939397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8315.

The product of its digits is 7440174, while the sum is 58.

The square root of 693939397 is about 26342.7294903167. The cubic root of 693939397 is about 885.3340783906.

Subtracting 693939397 from its reverse (793939396), we obtain a palindrome (99999999).

The spelling of 693939397 in words is "six hundred ninety-three million, nine hundred thirty-nine thousand, three hundred ninety-seven".