993994872 has 32 divisors (see below), whose sum is σ = 2676140880. Its totient is φ = 305844480.

The previous prime is 993994847. The next prime is 993994877. The reversal of 993994872 is 278499399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993994877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592629 + ... + 1593252.

Almost surely, 2^993994872 is an apocalyptic number.

It is an amenable number.

993994872 is an abundant number, since it is smaller than the sum of its proper divisors (1682146008).

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

993994872 is a wasteful number, since it uses less digits than its factorization.

993994872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185903 (or 3185899 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 60.

The square root of 993994872 is about 31527.6842156223. The cubic root of 993994872 is about 997.9942704051.

The spelling of 993994872 in words is "nine hundred ninety-three million, nine hundred ninety-four thousand, eight hundred seventy-two".