3613257 has 6 divisors (see below), whose sum is σ = 5219162. Its totient is φ = 2408832.

The previous prime is 3613237. The next prime is 3613271. The reversal of 3613257 is 7523163.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3606201 + 7056 = 1899^2 + 84^2 .

It is not a de Polignac number, because 3613257 - 2⁶ = 3613193 is a prime.

It is a super-2 number, since 2×3613257² = 26111252296098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3613257.

It is not an unprimeable number, because it can be changed into a prime (3613217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200728 + ... + 200745.

Almost surely, 2^3613257 is an apocalyptic number.

It is an amenable number.

3613257 is a deficient number, since it is larger than the sum of its proper divisors (1605905).

3613257 is a wasteful number, since it uses less digits than its factorization.

3613257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401479 (or 401476 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 3613257 is about 1900.8569120268. The cubic root of 3613257 is about 153.4497849873.

The spelling of 3613257 in words is "three million, six hundred thirteen thousand, two hundred fifty-seven".