7989693 has 4 divisors (see below), whose sum is σ = 10652928. Its totient is φ = 5326460.

The previous prime is 7989679. The next prime is 7989713. The reversal of 7989693 is 3969897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7989693 - 2⁸ = 7989437 is a prime.

It is a d-powerful number, because it can be written as 7 + 9⁶ + 8⁷ + 9⁶ + 6⁶ + 9⁷ + 3³ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7989613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331613 + ... + 1331618.

It is an arithmetic number, because the mean of its divisors is an integer number (2663232).

Almost surely, 2^7989693 is an apocalyptic number.

It is an amenable number.

7989693 is a deficient number, since it is larger than the sum of its proper divisors (2663235).

7989693 is a wasteful number, since it uses less digits than its factorization.

7989693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663234.

The product of its digits is 734832, while the sum is 51.

The square root of 7989693 is about 2826.6045001026. The cubic root of 7989693 is about 199.9140714200.

The spelling of 7989693 in words is "seven million, nine hundred eighty-nine thousand, six hundred ninety-three".