3688291 has 4 divisors (see below), whose sum is σ = 3693352. Its totient is φ = 3683232.

The previous prime is 3688277. The next prime is 3688301. The reversal of 3688291 is 1928863.

3688291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1928863 = 67 ⋅28789.

It is a cyclic number.

It is not a de Polignac number, because 3688291 - 2¹⁹ = 3164003 is a prime.

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 3688291.

It is not an unprimeable number, because it can be changed into a prime (3688241) 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 3 ways as a sum of consecutive naturals, for example, 1206 + ... + 2971.

It is an arithmetic number, because the mean of its divisors is an integer number (923338).

Almost surely, 2^3688291 is an apocalyptic number.

3688291 is a deficient number, since it is larger than the sum of its proper divisors (5061).

3688291 is an equidigital number, since it uses as much as digits as its factorization.

3688291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060.

The product of its digits is 20736, while the sum is 37.

The square root of 3688291 is about 1920.4923847805. The cubic root of 3688291 is about 154.5047110903.

The spelling of 3688291 in words is "three million, six hundred eighty-eight thousand, two hundred ninety-one".