693943820 has 24 divisors (see below), whose sum is σ = 1472309664. Its totient is φ = 274715136.

The previous prime is 693943801. The next prime is 693943829. The reversal of 693943820 is 28349396.

693943820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (693943829) 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, 176912 + ... + 180791.

It is an arithmetic number, because the mean of its divisors is an integer number (61346236).

Almost surely, 2^693943820 is an apocalyptic number.

It is an amenable number.

693943820 is an abundant number, since it is smaller than the sum of its proper divisors (778365844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

693943820 is a wasteful number, since it uses less digits than its factorization.

693943820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357809 (or 357807 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 693943820 is about 26342.8134412405. The cubic root of 693943820 is about 885.3359593543.

The spelling of 693943820 in words is "six hundred ninety-three million, nine hundred forty-three thousand, eight hundred twenty".