3655013 has 4 divisors (see below), whose sum is σ = 3689280. Its totient is φ = 3620748.

The previous prime is 3655007. The next prime is 3655019. The reversal of 3655013 is 3105563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3105563 = 193 ⋅16091.

It is an interprime number because it is at equal distance from previous prime (3655007) and next prime (3655019).

It is a cyclic number.

It is not a de Polignac number, because 3655013 - 2⁴ = 3654997 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3655013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3655019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16973 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (922320).

Almost surely, 2^3655013 is an apocalyptic number.

It is an amenable number.

3655013 is a deficient number, since it is larger than the sum of its proper divisors (34267).

3655013 is a wasteful number, since it uses less digits than its factorization.

3655013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34266.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 3655013 is about 1911.8088293551. The cubic root of 3655013 is about 154.0386280792.

It can be divided in two parts, 36550 and 13, that added together give a palindrome (36563).

The spelling of 3655013 in words is "three million, six hundred fifty-five thousand, thirteen".