3996181 has 8 divisors (see below), whose sum is σ = 4765824. Its totient is φ = 3276240.

The previous prime is 3996151. The next prime is 3996193. The reversal of 3996181 is 1816993.

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 3996181 - 2⁵ = 3996149 is a prime.

It is a super-2 number, since 2×3996181² = 31938925169522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3996181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12250 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (595728).

Almost surely, 2^3996181 is an apocalyptic number.

It is an amenable number.

3996181 is a deficient number, since it is larger than the sum of its proper divisors (769643).

3996181 is a wasteful number, since it uses less digits than its factorization.

3996181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24851.

The product of its digits is 11664, while the sum is 37.

The square root of 3996181 is about 1999.0450220043. The cubic root of 3996181 is about 158.6895700721.

The spelling of 3996181 in words is "three million, nine hundred ninety-six thousand, one hundred eighty-one".