3644125 has 8 divisors (see below), whose sum is σ = 4548024. Its totient is φ = 2915200.

The previous prime is 3644117. The next prime is 3644129. The reversal of 3644125 is 5214463.

It can be written as a sum of positive squares in 4 ways, for example, as 974169 + 2669956 = 987^2 + 1634^2 .

It is not a de Polignac number, because 3644125 - 2³ = 3644117 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

3644125 is a lucky number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 3644125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644129) 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, 14452 + ... + 14701.

It is an arithmetic number, because the mean of its divisors is an integer number (568503).

Almost surely, 2^3644125 is an apocalyptic number.

It is an amenable number.

3644125 is a deficient number, since it is larger than the sum of its proper divisors (903899).

3644125 is an equidigital number, since it uses as much as digits as its factorization.

3644125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29168 (or 29158 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 3644125 is about 1908.9591404742. The cubic root of 3644125 is about 153.8855195738.

Adding to 3644125 its reverse (5214463), we get a palindrome (8858588).

It can be divided in two parts, 364 and 4125, that added together give a square (4489 = 67²).

The spelling of 3644125 in words is "three million, six hundred forty-four thousand, one hundred twenty-five".