3387021 has 16 divisors (see below), whose sum is σ = 4961088. Its totient is φ = 2038400.

The previous prime is 3387019. The next prime is 3387061. The reversal of 3387021 is 1207833.

3387021 = T₇₈ + T₇₉ + ... + T₂₇₄.

It is a 4-Lehmer number, since φ(3387021) divides (3387021-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 3387021 - 2¹ = 3387019 is a prime.

It is a super-2 number, since 2×3387021² = 22943822508882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3386982 and 3387000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3387001) 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 in 15 ways as a sum of consecutive naturals, for example, 6241 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (310068).

Almost surely, 2^3387021 is an apocalyptic number.

It is an amenable number.

3387021 is a deficient number, since it is larger than the sum of its proper divisors (1574067).

3387021 is a wasteful number, since it uses less digits than its factorization.

3387021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 3387021 is about 1840.3861007952. The cubic root of 3387021 is about 150.1778778686.

The spelling of 3387021 in words is "three million, three hundred eighty-seven thousand, twenty-one".