3613625 has 8 divisors (see below), whose sum is σ = 4509960. Its totient is φ = 2890800.

The previous prime is 3613619. The next prime is 3613633. The reversal of 3613625 is 5263163.

It can be written as a sum of positive squares in 4 ways, for example, as 94249 + 3519376 = 307^2 + 1876^2 .

It is not a de Polignac number, because 3613625 - 2⁴ = 3613609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3613594 and 3613603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14330 + ... + 14579.

It is an arithmetic number, because the mean of its divisors is an integer number (563745).

Almost surely, 2^3613625 is an apocalyptic number.

It is an amenable number.

3613625 is a deficient number, since it is larger than the sum of its proper divisors (896335).

3613625 is an equidigital number, since it uses as much as digits as its factorization.

3613625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28924 (or 28914 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

The square root of 3613625 is about 1900.9537080108. The cubic root of 3613625 is about 153.4549942859.

Adding to 3613625 its reverse (5263163), we get a palindrome (8876788).

The spelling of 3613625 in words is "three million, six hundred thirteen thousand, six hundred twenty-five".