3868631 has 8 divisors (see below), whose sum is σ = 4181520. Its totient is φ = 3557952.

The previous prime is 3868619. The next prime is 3868649. The reversal of 3868631 is 1368683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3868631 - 2⁶ = 3868567 is a prime.

It is a super-2 number, since 2×3868631² = 29932611628322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3² + 8⁵ + 6² + 8⁷ + 6⁸ + 3¹⁰ + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3868591 and 3868600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6515 + ... + 7083.

It is an arithmetic number, because the mean of its divisors is an integer number (522690).

Almost surely, 2^3868631 is an apocalyptic number.

3868631 is a deficient number, since it is larger than the sum of its proper divisors (312889).

3868631 is a wasteful number, since it uses less digits than its factorization.

3868631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105.

The product of its digits is 20736, while the sum is 35.

The square root of 3868631 is about 1966.8835756089. The cubic root of 3868631 is about 156.9829318673.

The spelling of 3868631 in words is "three million, eight hundred sixty-eight thousand, six hundred thirty-one".