4387225 has 12 divisors (see below), whose sum is σ = 5491836. Its totient is φ = 3476480.

The previous prime is 4387223. The next prime is 4387231. The reversal of 4387225 is 5227834.

It can be written as a sum of positive squares in 6 ways, for example, as 1814409 + 2572816 = 1347^2 + 1604^2 .

It is not a de Polignac number, because 4387225 - 2¹ = 4387223 is a prime.

It is a super-3 number, since 3×4387225³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 3¹¹ + 8 + 7⁴ + 2¹¹ + 2¹³ + 5⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4387223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2049 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (457653).

Almost surely, 2^4387225 is an apocalyptic number.

It is an amenable number.

4387225 is a deficient number, since it is larger than the sum of its proper divisors (1104611).

4387225 is a wasteful number, since it uses less digits than its factorization.

4387225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1671 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 4387225 is about 2094.5703616732. The cubic root of 4387225 is about 163.7055120681.

The spelling of 4387225 in words is "four million, three hundred eighty-seven thousand, two hundred twenty-five".