3867531 has 8 divisors (see below), whose sum is σ = 5197824. Its totient is φ = 2557800.

The previous prime is 3867503. The next prime is 3867533. The reversal of 3867531 is 1357683.

It is a happy number.

3867531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3867531 - 2¹⁴ = 3851147 is a prime.

It is a super-2 number, since 2×3867531² = 29915592071922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3867492 and 3867501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4695 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (649728).

Almost surely, 2^3867531 is an apocalyptic number.

3867531 is a deficient number, since it is larger than the sum of its proper divisors (1330293).

3867531 is a wasteful number, since it uses less digits than its factorization.

3867531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10281.

The product of its digits is 15120, while the sum is 33.

The square root of 3867531 is about 1966.6039255529. The cubic root of 3867531 is about 156.9680517031.

The spelling of 3867531 in words is "three million, eight hundred sixty-seven thousand, five hundred thirty-one".