3321625 has 8 divisors (see below), whose sum is σ = 4145544. Its totient is φ = 2657200.

The previous prime is 3321623. The next prime is 3321629. The reversal of 3321625 is 5261233.

It can be written as a sum of positive squares in 4 ways, for example, as 92416 + 3229209 = 304^2 + 1797^2 .

It is not a de Polignac number, because 3321625 - 2¹ = 3321623 is a prime.

It is a super-2 number, since 2×3321625² = 22066385281250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3321596 and 3321605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321623) 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, 13162 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (518193).

Almost surely, 2^3321625 is an apocalyptic number.

It is an amenable number.

3321625 is a deficient number, since it is larger than the sum of its proper divisors (823919).

3321625 is an equidigital number, since it uses as much as digits as its factorization.

3321625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26588 (or 26578 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The square root of 3321625 is about 1822.5325785840. The cubic root of 3321625 is about 149.2050537716.

Adding to 3321625 its reverse (5261233), we get a palindrome (8582858).

The spelling of 3321625 in words is "three million, three hundred twenty-one thousand, six hundred twenty-five".