3609813 has 8 divisors (see below), whose sum is σ = 4848768. Its totient is φ = 2388704.

The previous prime is 3609803. The next prime is 3609817. The reversal of 3609813 is 3189063.

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 3609813 - 2⁹ = 3609301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609817) 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, 3981 + ... + 4802.

It is an arithmetic number, because the mean of its divisors is an integer number (606096).

Almost surely, 2^3609813 is an apocalyptic number.

It is an amenable number.

3609813 is a deficient number, since it is larger than the sum of its proper divisors (1238955).

3609813 is a wasteful number, since it uses less digits than its factorization.

3609813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 3609813 is about 1899.9507888364. The cubic root of 3609813 is about 153.4010155939.

The spelling of 3609813 in words is "three million, six hundred nine thousand, eight hundred thirteen".