65673321 has 8 divisors (see below), whose sum is σ = 100073664. Its totient is φ = 37527600.

The previous prime is 65673319. The next prime is 65673337. The reversal of 65673321 is 12337656.

65673321 is digitally balanced in base 2, 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 not a de Polignac number, because 65673321 - 2¹ = 65673319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65673301) 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 7 ways as a sum of consecutive naturals, for example, 1563630 + ... + 1563671.

It is an arithmetic number, because the mean of its divisors is an integer number (12509208).

Almost surely, 2^65673321 is an apocalyptic number.

It is an amenable number.

65673321 is a deficient number, since it is larger than the sum of its proper divisors (34400343).

65673321 is a wasteful number, since it uses less digits than its factorization.

65673321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127311.

The product of its digits is 22680, while the sum is 33.

The square root of 65673321 is about 8103.9077610743. The cubic root of 65673321 is about 403.4561371992.

The spelling of 65673321 in words is "sixty-five million, six hundred seventy-three thousand, three hundred twenty-one".