3869655 has 16 divisors (see below), whose sum is σ = 6251904. Its totient is φ = 2043680.

The previous prime is 3869653. The next prime is 3869683. The reversal of 3869655 is 5569683.

It is not a de Polignac number, because 3869655 - 2¹ = 3869653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (390744).

Almost surely, 2^3869655 is an apocalyptic number.

3869655 is a deficient number, since it is larger than the sum of its proper divisors (2382249).

3869655 is a wasteful number, since it uses less digits than its factorization.

3869655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526.

The product of its digits is 194400, while the sum is 42.

The square root of 3869655 is about 1967.1438686583. The cubic root of 3869655 is about 156.9967814126.

The spelling of 3869655 in words is "three million, eight hundred sixty-nine thousand, six hundred fifty-five".