3689591 has 8 divisors (see below), whose sum is σ = 4053120. Its totient is φ = 3343032.

The previous prime is 3689579. The next prime is 3689597. The reversal of 3689591 is 1959863.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3689591 is a prime.

It is a super-2 number, since 2×3689591² = 27226163494562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3785 + ... + 4658.

It is an arithmetic number, because the mean of its divisors is an integer number (506640).

Almost surely, 2^3689591 is an apocalyptic number.

3689591 is a deficient number, since it is larger than the sum of its proper divisors (363529).

3689591 is a wasteful number, since it uses less digits than its factorization.

3689591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8485.

The product of its digits is 58320, while the sum is 41.

The square root of 3689591 is about 1920.8308098320. The cubic root of 3689591 is about 154.5228615500.

The spelling of 3689591 in words is "three million, six hundred eighty-nine thousand, five hundred ninety-one".