3613265 has 8 divisors (see below), whose sum is σ = 4591080. Its totient is φ = 2720512.

The previous prime is 3613237. The next prime is 3613271. The reversal of 3613265 is 5623163.

3613265 = 453² + 454² + ... + 469².

It can be written as a sum of positive squares in 4 ways, for example, as 1697809 + 1915456 = 1303^2 + 1384^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3613265 - 2⁶ = 3613201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21170 + ... + 21339.

It is an arithmetic number, because the mean of its divisors is an integer number (573885).

Almost surely, 2^3613265 is an apocalyptic number.

It is an amenable number.

3613265 is a deficient number, since it is larger than the sum of its proper divisors (977815).

3613265 is a wasteful number, since it uses less digits than its factorization.

3613265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42531.

The product of its digits is 3240, while the sum is 26.

The square root of 3613265 is about 1900.8590163397. The cubic root of 3613265 is about 153.4498982367.

The spelling of 3613265 in words is "three million, six hundred thirteen thousand, two hundred sixty-five".