3661365 has 8 divisors (see below), whose sum is σ = 5858208. Its totient is φ = 1952720.

The previous prime is 3661327. The next prime is 3661367. The reversal of 3661365 is 5631663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3661365 - 2¹¹ = 3659317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122031 + ... + 122060.

It is an arithmetic number, because the mean of its divisors is an integer number (732276).

Almost surely, 2^3661365 is an apocalyptic number.

It is an amenable number.

3661365 is a deficient number, since it is larger than the sum of its proper divisors (2196843).

3661365 is a wasteful number, since it uses less digits than its factorization.

3661365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244099.

The product of its digits is 9720, while the sum is 30.

The square root of 3661365 is about 1913.4693621796. The cubic root of 3661365 is about 154.1278103519.

The spelling of 3661365 in words is "three million, six hundred sixty-one thousand, three hundred sixty-five".