3936981 has 8 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 2618432.

The previous prime is 3936973. The next prime is 3936997. The reversal of 3936981 is 1896393.

3936981 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 a cyclic number.

It is not a de Polignac number, because 3936981 - 2³ = 3936973 is a prime.

It is a super-2 number, since 2×3936981² = 30999638788722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3936181) 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, 205 + ... + 2813.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^3936981 is an apocalyptic number.

It is an amenable number.

3936981 is a deficient number, since it is larger than the sum of its proper divisors (1324779).

3936981 is a wasteful number, since it uses less digits than its factorization.

3936981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its digits is 34992, while the sum is 39.

The square root of 3936981 is about 1984.1827032811. The cubic root of 3936981 is about 157.9020516670.

The spelling of 3936981 in words is "three million, nine hundred thirty-six thousand, nine hundred eighty-one".