7923894109 has 8 divisors (see below), whose sum is σ = 7989601280. Its totient is φ = 7858238976.

The previous prime is 7923894073. The next prime is 7923894113. The reversal of 7923894109 is 9014983297.

It is a happy number.

7923894109 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7923894109 - 2⁷ = 7923893981 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 (7923894809) 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, 329902 + ... + 353104.

It is an arithmetic number, because the mean of its divisors is an integer number (998700160).

Almost surely, 2^7923894109 is an apocalyptic number.

It is an amenable number.

7923894109 is a deficient number, since it is larger than the sum of its proper divisors (65707171).

7923894109 is a wasteful number, since it uses less digits than its factorization.

7923894109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26019.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 7923894109 is about 89016.2575544490. The cubic root of 7923894109 is about 1993.6376239646.

The spelling of 7923894109 in words is "seven billion, nine hundred twenty-three million, eight hundred ninety-four thousand, one hundred nine".