3281629 has 16 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 2753280.

The previous prime is 3281627. The next prime is 3281657. The reversal of 3281629 is 9261823.

3281629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3281629 - 2¹ = 3281627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3281629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3281627) 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 15 ways as a sum of consecutive naturals, for example, 6612 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

Almost surely, 2^3281629 is an apocalyptic number.

It is an amenable number.

3281629 is a deficient number, since it is larger than the sum of its proper divisors (589091).

3281629 is a wasteful number, since it uses less digits than its factorization.

3281629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its digits is 5184, while the sum is 31.

The square root of 3281629 is about 1811.5267041918. The cubic root of 3281629 is about 148.6037698596.

The spelling of 3281629 in words is "three million, two hundred eighty-one thousand, six hundred twenty-nine".