3968531 has 8 divisors (see below), whose sum is σ = 4802400. Its totient is φ = 3201408.

The previous prime is 3968521. The next prime is 3968533. The reversal of 3968531 is 1358693.

3968531 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 3968531 - 2¹⁰ = 3967507 is a prime.

It is a super-2 number, since 2×3968531² = 31498476595922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3968491 and 3968500.

It is not an unprimeable number, because it can be changed into a prime (3968533) 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, 16556 + ... + 16793.

It is an arithmetic number, because the mean of its divisors is an integer number (600300).

Almost surely, 2^3968531 is an apocalyptic number.

3968531 is a deficient number, since it is larger than the sum of its proper divisors (833869).

3968531 is a wasteful number, since it uses less digits than its factorization.

3968531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33373.

The product of its digits is 19440, while the sum is 35.

The square root of 3968531 is about 1992.1172154268. The cubic root of 3968531 is about 158.3227260361.

The spelling of 3968531 in words is "three million, nine hundred sixty-eight thousand, five hundred thirty-one".