3661015 has 16 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 2737152.

The previous prime is 3660961. The next prime is 3661019. The reversal of 3661015 is 5101663.

It is a cyclic number.

It is not a de Polignac number, because 3661015 - 2¹⁷ = 3529943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8239 + ... + 8671.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

Almost surely, 2^3661015 is an apocalyptic number.

3661015 is a deficient number, since it is larger than the sum of its proper divisors (1026185).

3661015 is a wasteful number, since it uses less digits than its factorization.

3661015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 3661015 is about 1913.3779030814. The cubic root of 3661015 is about 154.1228990276.

Adding to 3661015 its reverse (5101663), we get a palindrome (8762678).

The spelling of 3661015 in words is "three million, six hundred sixty-one thousand, fifteen".