3421825 has 24 divisors (see below), whose sum is σ = 4838976. Its totient is φ = 2376000.

The previous prime is 3421813. The next prime is 3421853. The reversal of 3421825 is 5281243.

It is not a de Polignac number, because 3421825 - 2⁵ = 3421793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3421825.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6055 + ... + 6595.

It is an arithmetic number, because the mean of its divisors is an integer number (201624).

Almost surely, 2^3421825 is an apocalyptic number.

It is an amenable number.

3421825 is a deficient number, since it is larger than the sum of its proper divisors (1417151).

3421825 is a wasteful number, since it uses less digits than its factorization.

3421825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 580 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 3421825 is about 1849.8175585717. The cubic root of 3421825 is about 150.6905200397.

It can be divided in two parts, 34218 and 25, that added together give a palindrome (34243).

The spelling of 3421825 in words is "three million, four hundred twenty-one thousand, eight hundred twenty-five".