3853657 has 4 divisors (see below), whose sum is σ = 3862800. Its totient is φ = 3844516.

The previous prime is 3853649. The next prime is 3853669. The reversal of 3853657 is 7563583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3853657 - 2³ = 3853649 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 8³ + 5⁵ + 3¹³ + 6⁵ + 5⁹ + 7⁶ .

It is a Duffinian number.

3853657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3853687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3907 + ... + 4792.

It is an arithmetic number, because the mean of its divisors is an integer number (965700).

Almost surely, 2^3853657 is an apocalyptic number.

It is an amenable number.

3853657 is a deficient number, since it is larger than the sum of its proper divisors (9143).

3853657 is an equidigital number, since it uses as much as digits as its factorization.

3853657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142.

The product of its digits is 75600, while the sum is 37.

The square root of 3853657 is about 1963.0733557358. The cubic root of 3853657 is about 156.7801295668.

The spelling of 3853657 in words is "three million, eight hundred fifty-three thousand, six hundred fifty-seven".