3856633 has 6 divisors (see below), whose sum is σ = 4239242. Its totient is φ = 3505920.

The previous prime is 3856631. The next prime is 3856661. The reversal of 3856633 is 3366583.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2832489 + 1024144 = 1683^2 + 1012^2 .

It is not a de Polignac number, because 3856633 - 2¹ = 3856631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3856631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15816 + ... + 16057.

Almost surely, 2^3856633 is an apocalyptic number.

It is an amenable number.

3856633 is a deficient number, since it is larger than the sum of its proper divisors (382609).

3856633 is a wasteful number, since it uses less digits than its factorization.

3856633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31895 (or 31884 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 3856633 is about 1963.8312045591. The cubic root of 3856633 is about 156.8204771822.

It can be divided in two parts, 3856 and 633, that added together give a square (4489 = 67²).

The spelling of 3856633 in words is "three million, eight hundred fifty-six thousand, six hundred thirty-three".