3078321 has 16 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 1930880.

The previous prime is 3078259. The next prime is 3078329. The reversal of 3078321 is 1238703.

It is a cyclic number.

It is not a de Polignac number, because 3078321 - 2⁷ = 3078193 is a prime.

It is an alternating number because its digits alternate between odd and even.

3078321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3078291 and 3078300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3078329) 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 15 ways as a sum of consecutive naturals, for example, 3136 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^3078321 is an apocalyptic number.

It is an amenable number.

3078321 is a deficient number, since it is larger than the sum of its proper divisors (1276239).

3078321 is a wasteful number, since it uses less digits than its factorization.

3078321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 3078321 is about 1754.5144627503. The cubic root of 3078321 is about 145.4692841481.

The spelling of 3078321 in words is "three million, seventy-eight thousand, three hundred twenty-one".