3689775 has 54 divisors (see below), whose sum is σ = 7131488. Its totient is φ = 1821600.

The previous prime is 3689773. The next prime is 3689779. The reversal of 3689775 is 5779863.

It is a happy number.

It is not a de Polignac number, because 3689775 - 2¹ = 3689773 is a prime.

It is a super-2 number, since 2×3689775² = 27228879101250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3689775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689771) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 119010 + ... + 119040.

Almost surely, 2^3689775 is an apocalyptic number.

3689775 is a deficient number, since it is larger than the sum of its proper divisors (3441713).

3689775 is a wasteful number, since it uses less digits than its factorization.

3689775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 62 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 3689775 is about 1920.8787051764. The cubic root of 3689775 is about 154.5254301937.

The spelling of 3689775 in words is "three million, six hundred eighty-nine thousand, seven hundred seventy-five".