693808128 has 132 divisors (see below), whose sum is σ = 2157832768. Its totient is φ = 213442560.

The previous prime is 693808079. The next prime is 693808163. The reversal of 693808128 is 821808396.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 116913 + ... + 122703.

Almost surely, 2^693808128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 693808128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078916384).

693808128 is an abundant number, since it is smaller than the sum of its proper divisors (1464024640).

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

693808128 is a wasteful number, since it uses less digits than its factorization.

693808128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830 (or 5809 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 693808128 is about 26340.2378121383. The cubic root of 693808128 is about 885.2782501495.

The spelling of 693808128 in words is "six hundred ninety-three million, eight hundred eight thousand, one hundred twenty-eight".