993879384 has 16 divisors (see below), whose sum is σ = 2484698520. Its totient is φ = 331293120.

The previous prime is 993879377. The next prime is 993879391. The reversal of 993879384 is 483978399.

It is an interprime number because it is at equal distance from previous prime (993879377) and next prime (993879391).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20705797 + ... + 20705844.

Almost surely, 2^993879384 is an apocalyptic number.

It is an amenable number.

993879384 is an abundant number, since it is smaller than the sum of its proper divisors (1490819136).

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

993879384 is a wasteful number, since it uses less digits than its factorization.

993879384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41411650 (or 41411646 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 60.

The square root of 993879384 is about 31525.8526292311. The cubic root of 993879384 is about 997.9556180171.

The spelling of 993879384 in words is "nine hundred ninety-three million, eight hundred seventy-nine thousand, three hundred eighty-four".