7894393693 has 8 divisors (see below), whose sum is σ = 8084934176. Its totient is φ = 7704169200.

The previous prime is 7894393679. The next prime is 7894393699. The reversal of 7894393693 is 3963934987.

7894393693 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 7894393693 - 2⁹ = 7894393181 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 (7894393699) 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, 28038 + ... + 128743.

It is an arithmetic number, because the mean of its divisors is an integer number (1010616772).

Almost surely, 2^7894393693 is an apocalyptic number.

It is an amenable number.

7894393693 is a deficient number, since it is larger than the sum of its proper divisors (190540483).

7894393693 is a wasteful number, since it uses less digits than its factorization.

7894393693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157995.

The product of its digits is 26453952, while the sum is 61.

The square root of 7894393693 is about 88850.4006350000. The cubic root of 7894393693 is about 1991.1604632701.

The spelling of 7894393693 in words is "seven billion, eight hundred ninety-four million, three hundred ninety-three thousand, six hundred ninety-three".