3613345 has 4 divisors (see below), whose sum is σ = 4336020. Its totient is φ = 2890672.

The previous prime is 3613331. The next prime is 3613349. The reversal of 3613345 is 5433163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5433163 = 389 ⋅13967.

It can be written as a sum of positive squares in 2 ways, for example, as 2845969 + 767376 = 1687^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 3613345 - 2⁷ = 3613217 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 6² + 1 + 3⁵ + 3¹³ + 4⁸ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (3613349) 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, 361330 + ... + 361339.

It is an arithmetic number, because the mean of its divisors is an integer number (1084005).

Almost surely, 2^3613345 is an apocalyptic number.

It is an amenable number.

3613345 is a deficient number, since it is larger than the sum of its proper divisors (722675).

3613345 is an equidigital number, since it uses as much as digits as its factorization.

3613345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722674.

The product of its digits is 3240, while the sum is 25.

The square root of 3613345 is about 1900.8800593409. The cubic root of 3613345 is about 153.4510307214.

The spelling of 3613345 in words is "three million, six hundred thirteen thousand, three hundred forty-five".