3660855 has 24 divisors (see below), whose sum is σ = 6441456. Its totient is φ = 1774080.

The previous prime is 3660847. The next prime is 3660871. The reversal of 3660855 is 5580663.

It is not a de Polignac number, because 3660855 - 2³ = 3660847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 807 + ... + 2823.

It is an arithmetic number, because the mean of its divisors is an integer number (268394).

Almost surely, 2^3660855 is an apocalyptic number.

3660855 is a deficient number, since it is larger than the sum of its proper divisors (2780601).

3660855 is a wasteful number, since it uses less digits than its factorization.

3660855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2036 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 3660855 is about 1913.3360917518. The cubic root of 3660855 is about 154.1206537465.

It can be divided in two parts, 36608 and 55, that added together give a palindrome (36663).

The spelling of 3660855 in words is "three million, six hundred sixty thousand, eight hundred fifty-five".