693443328 has 72 divisors (see below), whose sum is σ = 1954170288. Its totient is φ = 217546752.

The previous prime is 693443321. The next prime is 693443357. The reversal of 693443328 is 823344396.

It is a self number, because there is not a number n which added to its sum of digits gives 693443328.

It is not an unprimeable number, because it can be changed into a prime (693443321) 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, 13501 + ... + 39612.

It is an arithmetic number, because the mean of its divisors is an integer number (27141254).

Almost surely, 2^693443328 is an apocalyptic number.

693443328 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

693443328 is an abundant number, since it is smaller than the sum of its proper divisors (1260726960).

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

693443328 is a wasteful number, since it uses less digits than its factorization.

693443328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53149 (or 53135 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The square root of 693443328 is about 26333.3121350126. The cubic root of 693443328 is about 885.1230650146.

The spelling of 693443328 in words is "six hundred ninety-three million, four hundred forty-three thousand, three hundred twenty-eight".