3658825 has 12 divisors (see below), whose sum is σ = 4804380. Its totient is φ = 2754560.

The previous prime is 3658813. The next prime is 3658829. The reversal of 3658825 is 5288563.

It can be written as a sum of positive squares in 6 ways, for example, as 64009 + 3594816 = 253^2 + 1896^2 .

It is not a de Polignac number, because 3658825 - 2¹¹ = 3656777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3658829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3880 + ... + 4729.

It is an arithmetic number, because the mean of its divisors is an integer number (400365).

Almost surely, 2^3658825 is an apocalyptic number.

It is an amenable number.

3658825 is a deficient number, since it is larger than the sum of its proper divisors (1145555).

3658825 is a wasteful number, since it uses less digits than its factorization.

3658825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8636 (or 8631 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 3658825 is about 1912.8055311505. The cubic root of 3658825 is about 154.0921610607.

The spelling of 3658825 in words is "three million, six hundred fifty-eight thousand, eight hundred twenty-five".