3613691 has 8 divisors (see below), whose sum is σ = 3836160. Its totient is φ = 3396712.

The previous prime is 3613681. The next prime is 3613693. The reversal of 3613691 is 1963163.

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 3613691 - 2¹⁰ = 3612667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3613693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (479520).

Almost surely, 2^3613691 is an apocalyptic number.

3613691 is a deficient number, since it is larger than the sum of its proper divisors (222469).

3613691 is a wasteful number, since it uses less digits than its factorization.

3613691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its digits is 2916, while the sum is 29.

The square root of 3613691 is about 1900.9710676389. The cubic root of 3613691 is about 153.4559285249.

The spelling of 3613691 in words is "three million, six hundred thirteen thousand, six hundred ninety-one".