797989321 has 4 divisors (see below), whose sum is σ = 823730944. Its totient is φ = 772247700.

The previous prime is 797989289. The next prime is 797989343. The reversal of 797989321 is 123989797.

797989321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123989797 = 131 ⋅946487.

It is a cyclic number.

It is not a de Polignac number, because 797989321 - 2⁵ = 797989289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797989391) 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, 12870765 + ... + 12870826.

It is an arithmetic number, because the mean of its divisors is an integer number (205932736).

Almost surely, 2^797989321 is an apocalyptic number.

It is an amenable number.

797989321 is a deficient number, since it is larger than the sum of its proper divisors (25741623).

797989321 is a wasteful number, since it uses less digits than its factorization.

797989321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25741622.

The product of its digits is 1714608, while the sum is 55.

The square root of 797989321 is about 28248.7047667676. The cubic root of 797989321 is about 927.5393854772.

The spelling of 797989321 in words is "seven hundred ninety-seven million, nine hundred eighty-nine thousand, three hundred twenty-one".