3989081 has 8 divisors (see below), whose sum is σ = 4133184. Its totient is φ = 3846960.

The previous prime is 3989057. The next prime is 3989093. The reversal of 3989081 is 1809893.

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 3989081 - 2¹⁴ = 3972697 is a prime.

It is a super-2 number, since 2×3989081² = 31825534449122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989021) 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, 4436 + ... + 5258.

It is an arithmetic number, because the mean of its divisors is an integer number (516648).

Almost surely, 2^3989081 is an apocalyptic number.

It is an amenable number.

3989081 is a deficient number, since it is larger than the sum of its proper divisors (144103).

3989081 is a wasteful number, since it uses less digits than its factorization.

3989081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 3989081 is about 1997.2683845693. The cubic root of 3989081 is about 158.5955333011.

The spelling of 3989081 in words is "three million, nine hundred eighty-nine thousand, eighty-one".