3684257 has 8 divisors (see below), whose sum is σ = 4027392. Its totient is φ = 3355200.

The previous prime is 3684253. The next prime is 3684293. The reversal of 3684257 is 7524863.

It is a happy number.

3684257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3684257 - 2² = 3684253 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 6³ + 8³ + 4⁷ + 2¹¹ + 5⁹ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3684253) 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 7 ways as a sum of consecutive naturals, for example, 2969 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (503424).

Almost surely, 2^3684257 is an apocalyptic number.

It is an amenable number.

3684257 is a deficient number, since it is larger than the sum of its proper divisors (343135).

3684257 is a wasteful number, since it uses less digits than its factorization.

3684257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039.

The product of its digits is 40320, while the sum is 35.

The square root of 3684257 is about 1919.4418459542. The cubic root of 3684257 is about 154.4483616525.

Subtracting 3684257 from its reverse (7524863), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 3684257 in words is "three million, six hundred eighty-four thousand, two hundred fifty-seven".