3981485 has 16 divisors (see below), whose sum is σ = 5225472. Its totient is φ = 2899200.

The previous prime is 3981479. The next prime is 3981491. The reversal of 3981485 is 5841893.

3981485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3981479) and next prime (3981491).

It is not a de Polignac number, because 3981485 - 2⁶ = 3981421 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1880 + ... + 3390.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^3981485 is an apocalyptic number.

It is an amenable number.

3981485 is a deficient number, since it is larger than the sum of its proper divisors (1243987).

3981485 is a wasteful number, since it uses less digits than its factorization.

3981485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its digits is 34560, while the sum is 38.

The square root of 3981485 is about 1995.3658812358. The cubic root of 3981485 is about 158.4948035727.

The spelling of 3981485 in words is "three million, nine hundred eighty-one thousand, four hundred eighty-five".