6481329 has 4 divisors (see below), whose sum is σ = 8641776. Its totient is φ = 4320884.

The previous prime is 6481313. The next prime is 6481339. The reversal of 6481329 is 9231846.

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 6481329 - 2⁴ = 6481313 is a prime.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6481329.

It is not an unprimeable number, because it can be changed into a prime (6481339) 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, 1080219 + ... + 1080224.

It is an arithmetic number, because the mean of its divisors is an integer number (2160444).

Almost surely, 2^6481329 is an apocalyptic number.

It is an amenable number.

6481329 is a deficient number, since it is larger than the sum of its proper divisors (2160447).

6481329 is a wasteful number, since it uses less digits than its factorization.

6481329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160446.

The product of its digits is 10368, while the sum is 33.

The square root of 6481329 is about 2545.8454391420. The cubic root of 6481329 is about 186.4466948934.

The spelling of 6481329 in words is "six million, four hundred eighty-one thousand, three hundred twenty-nine".