693939 has 8 divisors (see below), whose sum is σ = 930240. Its totient is φ = 460136.

The previous prime is 693881. The next prime is 693943. The reversal of 693939 is 939396.

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

It is a cyclic number.

It is not a de Polignac number, because 693939 - 2⁸ = 693683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 693897 and 693906.

It is not an unprimeable number, because it can be changed into a prime (693989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172 + ... + 1190.

It is an arithmetic number, because the mean of its divisors is an integer number (116280).

2⁶⁹³⁹³⁹ is an apocalyptic number.

693939 is a deficient number, since it is larger than the sum of its proper divisors (236301).

693939 is a wasteful number, since it uses less digits than its factorization.

693939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its digits is 39366, while the sum is 39.

The square root of 693939 is about 833.0300114642. The cubic root of 693939 is about 88.5333909559.

The spelling of 693939 in words is "six hundred ninety-three thousand, nine hundred thirty-nine".