993912899 has 8 divisors (see below), whose sum is σ = 1140862560. Its totient is φ = 848203776.

The previous prime is 993912889. The next prime is 993912949. The reversal of 993912899 is 998219399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 993912899 - 2²⁴ = 977135683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993912889) 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, 308414 + ... + 311619.

It is an arithmetic number, because the mean of its divisors is an integer number (142607820).

Almost surely, 2^993912899 is an apocalyptic number.

993912899 is a deficient number, since it is larger than the sum of its proper divisors (146949661).

993912899 is a wasteful number, since it uses less digits than its factorization.

993912899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620269.

The product of its digits is 2834352, while the sum is 59.

The square root of 993912899 is about 31526.3841726259. The cubic root of 993912899 is about 997.9668353765.

The spelling of 993912899 in words is "nine hundred ninety-three million, nine hundred twelve thousand, eight hundred ninety-nine".