3980985 has 8 divisors (see below), whose sum is σ = 6369600. Its totient is φ = 2123184.

The previous prime is 3980971. The next prime is 3980987. The reversal of 3980985 is 5890893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3980985 - 2⁷ = 3980857 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3980987) 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, 132685 + ... + 132714.

It is an arithmetic number, because the mean of its divisors is an integer number (796200).

Almost surely, 2^3980985 is an apocalyptic number.

It is an amenable number.

3980985 is a deficient number, since it is larger than the sum of its proper divisors (2388615).

3980985 is a wasteful number, since it uses less digits than its factorization.

3980985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265407.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3980985 is about 1995.2405869970. The cubic root of 3980985 is about 158.4881686346.

The spelling of 3980985 in words is "three million, nine hundred eighty thousand, nine hundred eighty-five".