3689045 has 4 divisors (see below), whose sum is σ = 4426860. Its totient is φ = 2951232.

The previous prime is 3689009. The next prime is 3689069. The reversal of 3689045 is 5409863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 3034564 = 809^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 3689045 - 2⁶ = 3688981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3688996 and 3689014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368900 + ... + 368909.

It is an arithmetic number, because the mean of its divisors is an integer number (1106715).

Almost surely, 2^3689045 is an apocalyptic number.

It is an amenable number.

3689045 is a deficient number, since it is larger than the sum of its proper divisors (737815).

3689045 is an equidigital number, since it uses as much as digits as its factorization.

3689045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737814.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 3689045 is about 1920.6886785734. The cubic root of 3689045 is about 154.5152388763.

The spelling of 3689045 in words is "three million, six hundred eighty-nine thousand, forty-five".