1993660676 has 12 divisors (see below), whose sum is σ = 3987321408. Its totient is φ = 854425992.

The previous prime is 1993660657. The next prime is 1993660679. The reversal of 1993660676 is 6760663991.

It is a happy number.

1993660676 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1993660679) 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, 35601056 + ... + 35601111.

It is an arithmetic number, because the mean of its divisors is an integer number (332276784).

Almost surely, 2^1993660676 is an apocalyptic number.

It is an amenable number.

1993660676 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1993660676 is a wasteful number, since it uses less digits than its factorization.

1993660676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71202178 (or 71202176 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 53.

The square root of 1993660676 is about 44650.4275007530. The cubic root of 1993660676 is about 1258.5884663301.

The spelling of 1993660676 in words is "one billion, nine hundred ninety-three million, six hundred sixty thousand, six hundred seventy-six".