3660365 has 4 divisors (see below), whose sum is σ = 4392444. Its totient is φ = 2928288.

The previous prime is 3660359. The next prime is 3660367. The reversal of 3660365 is 5630663.

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 1042441 + 2617924 = 1021^2 + 1618^2 .

It is a cyclic number.

It is not a de Polignac number, because 3660365 - 2⁸ = 3660109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3660367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366032 + ... + 366041.

It is an arithmetic number, because the mean of its divisors is an integer number (1098111).

Almost surely, 2^3660365 is an apocalyptic number.

It is an amenable number.

3660365 is a deficient number, since it is larger than the sum of its proper divisors (732079).

3660365 is an equidigital number, since it uses as much as digits as its factorization.

3660365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732078.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 3660365 is about 1913.2080388708. The cubic root of 3660365 is about 154.1137771663.

The spelling of 3660365 in words is "three million, six hundred sixty thousand, three hundred sixty-five".