3856755 has 32 divisors (see below), whose sum is σ = 7363584. Its totient is φ = 1685376.

The previous prime is 3856751. The next prime is 3856763. The reversal of 3856755 is 5576583.

It is not a de Polignac number, because 3856755 - 2² = 3856751 is a prime.

3856755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3856751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1617 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (230112).

Almost surely, 2^3856755 is an apocalyptic number.

3856755 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3856755 is a deficient number, since it is larger than the sum of its proper divisors (3506829).

3856755 is a wasteful number, since it uses less digits than its factorization.

3856755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635.

The product of its digits is 126000, while the sum is 39.

The square root of 3856755 is about 1963.8622660462. The cubic root of 3856755 is about 156.8221307745.

It can be divided in two parts, 385 and 6755, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 3856755 in words is "three million, eight hundred fifty-six thousand, seven hundred fifty-five".