3307621 has 2 divisors, whose sum is σ = 3307622. Its totient is φ = 3307620.

The previous prime is 3307613. The next prime is 3307627. The reversal of 3307621 is 1267033.

3307621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 314721 = 1730^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 3307621 - 2³ = 3307613 is a prime.

It is equal to p₂₃₇₄₀₆ and since 3307621 and 237406 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 3307592 and 3307601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3307627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653810 + 1653811.

It is an arithmetic number, because the mean of its divisors is an integer number (1653811).

Almost surely, 2^3307621 is an apocalyptic number.

It is an amenable number.

3307621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3307621 is an equidigital number, since it uses as much as digits as its factorization.

3307621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 3307621 is about 1818.6866140157. The cubic root of 3307621 is about 148.9950751341.

The spelling of 3307621 in words is "three million, three hundred seven thousand, six hundred twenty-one".