3855653 has 4 divisors (see below), whose sum is σ = 3895500. Its totient is φ = 3815808.

The previous prime is 3855647. The next prime is 3855667. The reversal of 3855653 is 3565583.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2362369 + 1493284 = 1537^2 + 1222^2 .

It is a cyclic number.

It is not a de Polignac number, because 3855653 - 2¹⁰ = 3854629 is a prime.

It is a d-powerful number, because it can be written as 3³ + 8⁷ + 5³ + 5⁷ + 6⁵ + 5⁷ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19778 + ... + 19971.

It is an arithmetic number, because the mean of its divisors is an integer number (973875).

Almost surely, 2^3855653 is an apocalyptic number.

It is an amenable number.

3855653 is a deficient number, since it is larger than the sum of its proper divisors (39847).

3855653 is an equidigital number, since it uses as much as digits as its factorization.

3855653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39846.

The product of its digits is 54000, while the sum is 35.

The square root of 3855653 is about 1963.5816764270. The cubic root of 3855653 is about 156.8071929619.

The spelling of 3855653 in words is "three million, eight hundred fifty-five thousand, six hundred fifty-three".