3659825 has 12 divisors (see below), whose sum is σ = 4887708. Its totient is φ = 2702400.

The previous prime is 3659819. The next prime is 3659849. The reversal of 3659825 is 5289563.

It can be written as a sum of positive squares in 6 ways, for example, as 256 + 3659569 = 16^2 + 1913^2 .

It is not a de Polignac number, because 3659825 - 2¹⁰ = 3658801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5306 + ... + 5955.

It is an arithmetic number, because the mean of its divisors is an integer number (407309).

Almost surely, 2^3659825 is an apocalyptic number.

It is an amenable number.

3659825 is a deficient number, since it is larger than the sum of its proper divisors (1227883).

3659825 is a wasteful number, since it uses less digits than its factorization.

3659825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284 (or 11279 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 3659825 is about 1913.0669094415. The cubic root of 3659825 is about 154.1061981832.

The spelling of 3659825 in words is "three million, six hundred fifty-nine thousand, eight hundred twenty-five".