993971996 has 48 divisors (see below), whose sum is σ = 1824291840. Its totient is φ = 473428800.

The previous prime is 993971989. The next prime is 993971999. The reversal of 993971996 is 699179399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993971999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1765211 + ... + 1765773.

It is an arithmetic number, because the mean of its divisors is an integer number (38006080).

Almost surely, 2^993971996 is an apocalyptic number.

It is an amenable number.

993971996 is a deficient number, since it is larger than the sum of its proper divisors (830319844).

993971996 is a wasteful number, since it uses less digits than its factorization.

993971996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 832 counting only the distinct ones).

The product of its digits is 7440174, while the sum is 62.

The square root of 993971996 is about 31527.3214212689. The cubic root of 993971996 is about 997.9866143321.

The spelling of 993971996 in words is "nine hundred ninety-three million, nine hundred seventy-one thousand, nine hundred ninety-six".