8340789993 has 16 divisors (see below), whose sum is σ = 11708546880. Its totient is φ = 5266888704.

The previous prime is 8340789973. The next prime is 8340789997. The reversal of 8340789993 is 3999870438.

It is not a de Polignac number, because 8340789993 - 2⁹ = 8340789481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8340789997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411505 + ... + 431297.

It is an arithmetic number, because the mean of its divisors is an integer number (731784180).

Almost surely, 2^8340789993 is an apocalyptic number.

It is an amenable number.

8340789993 is a deficient number, since it is larger than the sum of its proper divisors (3367756887).

8340789993 is a wasteful number, since it uses less digits than its factorization.

8340789993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27208.

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

The square root of 8340789993 is about 91327.9255923400. The cubic root of 8340789993 is about 2028.0051903882.

The spelling of 8340789993 in words is "eight billion, three hundred forty million, seven hundred eighty-nine thousand, nine hundred ninety-three".