3689249 has 8 divisors (see below), whose sum is σ = 3902880. Its totient is φ = 3477600.

The previous prime is 3689237. The next prime is 3689263. The reversal of 3689249 is 9429863.

It is a happy number.

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 3689249 - 2¹² = 3685153 is a prime.

It is a super-2 number, since 2×3689249² = 27221116368002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3689209) 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, 4994 + ... + 5684.

It is an arithmetic number, because the mean of its divisors is an integer number (487860).

Almost surely, 2^3689249 is an apocalyptic number.

It is an amenable number.

3689249 is a deficient number, since it is larger than the sum of its proper divisors (213631).

3689249 is a wasteful number, since it uses less digits than its factorization.

3689249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 93312, while the sum is 41.

The square root of 3689249 is about 1920.7417837908. The cubic root of 3689249 is about 154.5180869962.

The spelling of 3689249 in words is "three million, six hundred eighty-nine thousand, two hundred forty-nine".