3368721 has 12 divisors (see below), whose sum is σ = 4574288. Its totient is φ = 2205144.

The previous prime is 3368707. The next prime is 3368747. The reversal of 3368721 is 1278633.

3368721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3368721 - 2⁶ = 3368657 is a prime.

It is a super-2 number, since 2×3368721² = 22696562351682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

3368721 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3368791) 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 in 11 ways as a sum of consecutive naturals, for example, 20586 + ... + 20748.

Almost surely, 2^3368721 is an apocalyptic number.

It is an amenable number.

3368721 is a deficient number, since it is larger than the sum of its proper divisors (1205567).

3368721 is an equidigital number, since it uses as much as digits as its factorization.

3368721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 249 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 3368721 is about 1835.4075841622. The cubic root of 3368721 is about 149.9069200305.

The spelling of 3368721 in words is "three million, three hundred sixty-eight thousand, seven hundred twenty-one".