3073221 has 12 divisors (see below), whose sum is σ = 4603872. Its totient is φ = 2048652.

The previous prime is 3073207. The next prime is 3073229. The reversal of 3073221 is 1223703.

It is not a de Polignac number, because 3073221 - 2⁹ = 3072709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3073194 and 3073203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3073229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6081 + ... + 6566.

It is an arithmetic number, because the mean of its divisors is an integer number (383656).

Almost surely, 2^3073221 is an apocalyptic number.

It is an amenable number.

3073221 is a deficient number, since it is larger than the sum of its proper divisors (1530651).

3073221 is an equidigital number, since it uses as much as digits as its factorization.

3073221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12662 (or 12650 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 3073221 is about 1753.0604667267. The cubic root of 3073221 is about 145.3889044609.

Adding to 3073221 its reverse (1223703), we get a palindrome (4296924).

The spelling of 3073221 in words is "three million, seventy-three thousand, two hundred twenty-one".