3609818 has 8 divisors (see below), whose sum is σ = 5446548. Its totient is φ = 1794304.

The previous prime is 3609817. The next prime is 3609821. The reversal of 3609818 is 8189063.

It can be written as a sum of positive squares in 2 ways, for example, as 3265249 + 344569 = 1807^2 + 587^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 4871 + ... + 5562.

Almost surely, 2^3609818 is an apocalyptic number.

3609818 is a deficient number, since it is larger than the sum of its proper divisors (1836730).

3609818 is a wasteful number, since it uses less digits than its factorization.

3609818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 3609818 is about 1899.9521046595. The cubic root of 3609818 is about 153.4010864198.

The spelling of 3609818 in words is "three million, six hundred nine thousand, eight hundred eighteen".