3659895 has 12 divisors (see below), whose sum is σ = 6343896. Its totient is φ = 1951920.

The previous prime is 3659861. The next prime is 3659917. The reversal of 3659895 is 5989563.

It is not a de Polignac number, because 3659895 - 2¹⁰ = 3658871 is a prime.

It is a super-2 number, since 2×3659895² = 26789662822050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 81331 = 3659895 / (3 + 6 + 5 + 9 + 8 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3659895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40621 + ... + 40710.

It is an arithmetic number, because the mean of its divisors is an integer number (528658).

Almost surely, 2^3659895 is an apocalyptic number.

3659895 is a deficient number, since it is larger than the sum of its proper divisors (2684001).

3659895 is a wasteful number, since it uses less digits than its factorization.

3659895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81342 (or 81339 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 3659895 is about 1913.0852045845. The cubic root of 3659895 is about 154.1071806861.

It can be divided in two parts, 3659 and 895, that added together give a palindrome (4554).

The spelling of 3659895 in words is "three million, six hundred fifty-nine thousand, eight hundred ninety-five".