3689425 has 12 divisors (see below), whose sum is σ = 4844556. Its totient is φ = 2777600.

The previous prime is 3689423. The next prime is 3689461. The reversal of 3689425 is 5249863.

3689425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 121104 + 3568321 = 348^2 + 1889^2 .

It is not a de Polignac number, because 3689425 - 2¹ = 3689423 is a prime.

It is a super-2 number, since 2×3689425² = 27223713661250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁹ + 6⁸ + 8⁵ + 9 + 4⁶ + 2⁷ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3689423) 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, 3916 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (403713).

Almost surely, 2^3689425 is an apocalyptic number.

It is an amenable number.

3689425 is a deficient number, since it is larger than the sum of its proper divisors (1155131).

3689425 is a wasteful number, since it uses less digits than its factorization.

3689425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708 (or 8703 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 3689425 is about 1920.7875988771. The cubic root of 3689425 is about 154.5205441134.

It can be divided in two parts, 3689 and 425, that added together give a palindrome (4114).

The spelling of 3689425 in words is "three million, six hundred eighty-nine thousand, four hundred twenty-five".