3990801 has 12 divisors (see below), whose sum is σ = 5653712. Its totient is φ = 2503488.

The previous prime is 3990773. The next prime is 3990827. The reversal of 3990801 is 1080993.

It is a happy number.

3990801 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 3990801 - 2⁶ = 3990737 is a prime.

It is a super-3 number, since 3×3990801³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3990841) 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, 1435 + ... + 3168.

Almost surely, 2^3990801 is an apocalyptic number.

It is an amenable number.

3990801 is a deficient number, since it is larger than the sum of its proper divisors (1662911).

3990801 is a wasteful number, since it uses less digits than its factorization.

3990801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640 (or 4623 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 3990801 is about 1997.6989262649. The cubic root of 3990801 is about 158.6183242749.

The spelling of 3990801 in words is "three million, nine hundred ninety thousand, eight hundred one".