1693308648 has 16 divisors (see below), whose sum is σ = 4233271680. Its totient is φ = 564436208.

The previous prime is 1693308601. The next prime is 1693308649. The reversal of 1693308648 is 8468033961.

It is a junction number, because it is equal to n+sod(n) for n = 1693308597 and 1693308606.

It is not an unprimeable number, because it can be changed into a prime (1693308649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35277240 + ... + 35277287.

It is an arithmetic number, because the mean of its divisors is an integer number (264579480).

Almost surely, 2^1693308648 is an apocalyptic number.

It is an amenable number.

1693308648 is an abundant number, since it is smaller than the sum of its proper divisors (2539963032).

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

1693308648 is a wasteful number, since it uses less digits than its factorization.

1693308648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70554536 (or 70554532 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 1693308648 is about 41149.8316885987. The cubic root of 1693308648 is about 1191.9152474162.

The spelling of 1693308648 in words is "one billion, six hundred ninety-three million, three hundred eight thousand, six hundred forty-eight".