3356921 has 2 divisors, whose sum is σ = 3356922. Its totient is φ = 3356920.

The previous prime is 3356893. The next prime is 3356929. The reversal of 3356921 is 1296533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3312400 + 44521 = 1820^2 + 211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3356921 is a prime.

It is a super-2 number, since 2×3356921² = 22537837200482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3356929) 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 as a sum of consecutive naturals, namely, 1678460 + 1678461.

It is an arithmetic number, because the mean of its divisors is an integer number (1678461).

Almost surely, 2^3356921 is an apocalyptic number.

It is an amenable number.

3356921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3356921 is an equidigital number, since it uses as much as digits as its factorization.

3356921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 29.

The square root of 3356921 is about 1832.1902193823. The cubic root of 3356921 is about 149.7316832901.

The spelling of 3356921 in words is "three million, three hundred fifty-six thousand, nine hundred twenty-one".