3688029 has 6 divisors (see below), whose sum is σ = 5327166. Its totient is φ = 2458680.

The previous prime is 3688021. The next prime is 3688057. The reversal of 3688029 is 9208863.

3688029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2528100 + 1159929 = 1590^2 + 1077^2 .

It is not a de Polignac number, because 3688029 - 2³ = 3688021 is a prime.

It is a super-4 number, since 4×3688029⁴ (a number of 27 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3687984 and 3688002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688021) 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 5 ways as a sum of consecutive naturals, for example, 204882 + ... + 204899.

It is an arithmetic number, because the mean of its divisors is an integer number (887861).

Almost surely, 2^3688029 is an apocalyptic number.

It is an amenable number.

3688029 is a deficient number, since it is larger than the sum of its proper divisors (1639137).

3688029 is a wasteful number, since it uses less digits than its factorization.

3688029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409787 (or 409784 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 3688029 is about 1920.4241718954. The cubic root of 3688029 is about 154.5010525583.

The spelling of 3688029 in words is "three million, six hundred eighty-eight thousand, twenty-nine".