3861775 has 12 divisors (see below), whose sum is σ = 4834512. Its totient is φ = 3059840.

The previous prime is 3861751. The next prime is 3861811. The reversal of 3861775 is 5771683.

3861775 = 80² + 81² + ... + 229².

It is not a de Polignac number, because 3861775 - 2⁵ = 3861743 is a prime.

It is a Duffinian number.

3861775 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2142 + ... + 3508.

It is an arithmetic number, because the mean of its divisors is an integer number (402876).

Almost surely, 2^3861775 is an apocalyptic number.

3861775 is a deficient number, since it is larger than the sum of its proper divisors (972737).

3861775 is a wasteful number, since it uses less digits than its factorization.

3861775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1485 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 3861775 is about 1965.1399441261. The cubic root of 3861775 is about 156.8901418166.

The spelling of 3861775 in words is "three million, eight hundred sixty-one thousand, seven hundred seventy-five".