3613591 has 8 divisors (see below), whose sum is σ = 3893120. Its totient is φ = 3343032.

The previous prime is 3613559. The next prime is 3613601. The reversal of 3613591 is 1953163.

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 3613591 - 2⁵ = 3613559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613991) 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 7 ways as a sum of consecutive naturals, for example, 1395 + ... + 3028.

It is an arithmetic number, because the mean of its divisors is an integer number (486640).

Almost surely, 2^3613591 is an apocalyptic number.

3613591 is a deficient number, since it is larger than the sum of its proper divisors (279529).

3613591 is a wasteful number, since it uses less digits than its factorization.

3613591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485.

The product of its digits is 2430, while the sum is 28.

The square root of 3613591 is about 1900.9447651102. The cubic root of 3613591 is about 153.4545130069.

The spelling of 3613591 in words is "three million, six hundred thirteen thousand, five hundred ninety-one".