3998061 has 12 divisors (see below), whose sum is σ = 5797792. Its totient is φ = 2654856.

The previous prime is 3998041. The next prime is 3998069. The reversal of 3998061 is 1608993.

3998061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3998061 - 2⁶ = 3997997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998069) 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 11 ways as a sum of consecutive naturals, for example, 2040 + ... + 3486.

Almost surely, 2^3998061 is an apocalyptic number.

It is an amenable number.

3998061 is a deficient number, since it is larger than the sum of its proper divisors (1799731).

3998061 is a wasteful number, since it uses less digits than its factorization.

3998061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3998061 is about 1999.5151912401. The cubic root of 3998061 is about 158.7144512958.

The spelling of 3998061 in words is "three million, nine hundred ninety-eight thousand, sixty-one".