3219925 has 18 divisors (see below), whose sum is σ = 4171298. Its totient is φ = 2463840.

The previous prime is 3219917. The next prime is 3219929. The reversal of 3219925 is 5299123.

3219925 = 171² + 172² + ... + 244².

It can be written as a sum of positive squares in 3 ways, for example, as 682276 + 2537649 = 826^2 + 1593^2 .

It is not a de Polignac number, because 3219925 - 2³ = 3219917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3219929) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 54546 + ... + 54604.

Almost surely, 2^3219925 is an apocalyptic number.

It is an amenable number.

3219925 is a deficient number, since it is larger than the sum of its proper divisors (951373).

3219925 is an equidigital number, since it uses as much as digits as its factorization.

3219925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 101 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 3219925 is about 1794.4149464380. The cubic root of 3219925 is about 147.6664786966. Note that the first 3 decimals are identical.

The spelling of 3219925 in words is "three million, two hundred nineteen thousand, nine hundred twenty-five".