3655513 has 2 divisors, whose sum is σ = 3655514. Its totient is φ = 3655512.

The previous prime is 3655501. The next prime is 3655541. The reversal of 3655513 is 3155563.

It is a happy number.

It is an a-pointer prime, because the next prime (3655541) can be obtained adding 3655513 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1996569 + 1658944 = 1413^2 + 1288^2 .

It is an emirp because it is prime and its reverse (3155563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3655513 - 2⁵ = 3655481 is a prime.

It is not a weakly prime, because it can be changed into another prime (3658513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827756 + 1827757.

It is an arithmetic number, because the mean of its divisors is an integer number (1827757).

Almost surely, 2^3655513 is an apocalyptic number.

It is an amenable number.

3655513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3655513 is an equidigital number, since it uses as much as digits as its factorization.

3655513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6750, while the sum is 28.

The square root of 3655513 is about 1911.9395910959. The cubic root of 3655513 is about 154.0456518392.

The spelling of 3655513 in words is "three million, six hundred fifty-five thousand, five hundred thirteen".