7679321 has 4 divisors (see below), whose sum is σ = 8270052. Its totient is φ = 7088592.

The previous prime is 7679317. The next prime is 7679323. The reversal of 7679321 is 1239767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1239767 = 59 ⋅21013.

It can be written as a sum of positive squares in 2 ways, for example, as 3857296 + 3822025 = 1964^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 7679321 - 2² = 7679317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7679323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295346 + ... + 295371.

It is an arithmetic number, because the mean of its divisors is an integer number (2067513).

Almost surely, 2^7679321 is an apocalyptic number.

It is an amenable number.

7679321 is a deficient number, since it is larger than the sum of its proper divisors (590731).

7679321 is a wasteful number, since it uses less digits than its factorization.

7679321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590730.

The product of its digits is 15876, while the sum is 35.

The square root of 7679321 is about 2771.1587828921. The cubic root of 7679321 is about 197.2911513376.

It can be divided in two parts, 7679 and 321, that added together give a cube (8000 = 20³).

The spelling of 7679321 in words is "seven million, six hundred seventy-nine thousand, three hundred twenty-one".