3689445 has 8 divisors (see below), whose sum is σ = 5903136. Its totient is φ = 1967696.

The previous prime is 3689423. The next prime is 3689461. The reversal of 3689445 is 5449863.

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 3689445 - 2⁹ = 3688933 is a prime.

It is a super-2 number, since 2×3689445² = 27224008816050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122967 + ... + 122996.

It is an arithmetic number, because the mean of its divisors is an integer number (737892).

Almost surely, 2^3689445 is an apocalyptic number.

It is an amenable number.

3689445 is a deficient number, since it is larger than the sum of its proper divisors (2213691).

3689445 is a wasteful number, since it uses less digits than its factorization.

3689445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245971.

The product of its digits is 103680, while the sum is 39.

The square root of 3689445 is about 1920.7928050677. The cubic root of 3689445 is about 154.5208233263.

The spelling of 3689445 in words is "three million, six hundred eighty-nine thousand, four hundred forty-five".