3313921 has 6 divisors (see below), whose sum is σ = 3588630. Its totient is φ = 3058848.

The previous prime is 3313913. The next prime is 3313939. The reversal of 3313921 is 1293133.

It can be written as a sum of positive squares in 3 ways, for example, as 440896 + 2873025 = 664^2 + 1695^2 .

It is not a de Polignac number, because 3313921 - 2³ = 3313913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3313892 and 3313901.

It is not an unprimeable number, because it can be changed into a prime (3313901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9636 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (598105).

Almost surely, 2^3313921 is an apocalyptic number.

It is an amenable number.

3313921 is a deficient number, since it is larger than the sum of its proper divisors (274709).

3313921 is a wasteful number, since it uses less digits than its factorization.

3313921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19635 (or 19622 counting only the distinct ones).

The product of its digits is 486, while the sum is 22.

The square root of 3313921 is about 1820.4178091856. The cubic root of 3313921 is about 149.0896117255.

The spelling of 3313921 in words is "three million, three hundred thirteen thousand, nine hundred twenty-one".