793998991 has 8 divisors (see below), whose sum is σ = 847124784. Its totient is φ = 741586560.

The previous prime is 793998983. The next prime is 793999009. The reversal of 793998991 is 199899397.

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

It is a cyclic number.

It is not a de Polignac number, because 793998991 - 2³ = 793998983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (793990991) 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 7 ways as a sum of consecutive naturals, for example, 176040 + ... + 180493.

It is an arithmetic number, because the mean of its divisors is an integer number (105890598).

Almost surely, 2^793998991 is an apocalyptic number.

793998991 is a deficient number, since it is larger than the sum of its proper divisors (53125793).

793998991 is a wasteful number, since it uses less digits than its factorization.

793998991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356681.

The product of its digits is 9920232, while the sum is 64.

The square root of 793998991 is about 28177.9877031700. The cubic root of 793998991 is about 925.9907537791.

The spelling of 793998991 in words is "seven hundred ninety-three million, nine hundred ninety-eight thousand, nine hundred ninety-one".