3869631 has 12 divisors (see below), whose sum is σ = 5653440. Its totient is φ = 2550240.

The previous prime is 3869629. The next prime is 3869639. The reversal of 3869631 is 1369683.

It is a happy number.

It is not a de Polignac number, because 3869631 - 2¹ = 3869629 is a prime.

It is a super-2 number, since 2×3869631² = 29948088152322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1615 + ... + 3216.

It is an arithmetic number, because the mean of its divisors is an integer number (471120).

Almost surely, 2^3869631 is an apocalyptic number.

3869631 is a deficient number, since it is larger than the sum of its proper divisors (1783809).

3869631 is a wasteful number, since it uses less digits than its factorization.

3869631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926 (or 4923 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 3869631 is about 1967.1377684341. The cubic root of 3869631 is about 156.9964568419.

The spelling of 3869631 in words is "three million, eight hundred sixty-nine thousand, six hundred thirty-one".