3689623 has 8 divisors (see below), whose sum is σ = 4280192. Its totient is φ = 3114936.

The previous prime is 3689617. The next prime is 3689633. The reversal of 3689623 is 3269863.

It is a happy number.

3689623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3689623 - 2²¹ = 1592471 is a prime.

It is a super-2 number, since 2×3689623² = 27226635764258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689633) 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 7 ways as a sum of consecutive naturals, for example, 3465 + ... + 4402.

It is an arithmetic number, because the mean of its divisors is an integer number (535024).

Almost surely, 2^3689623 is an apocalyptic number.

3689623 is a deficient number, since it is larger than the sum of its proper divisors (590569).

3689623 is an equidigital number, since it uses as much as digits as its factorization.

3689623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941.

The product of its digits is 46656, while the sum is 37.

The square root of 3689623 is about 1920.8391395429. The cubic root of 3689623 is about 154.5233082767.

The spelling of 3689623 in words is "three million, six hundred eighty-nine thousand, six hundred twenty-three".