3981339 has 8 divisors (see below), whose sum is σ = 5898320. Its totient is φ = 2654208.

The previous prime is 3981331. The next prime is 3981343. The reversal of 3981339 is 9331893.

It is not a de Polignac number, because 3981339 - 2³ = 3981331 is a prime.

It is a Duffinian number.

3981339 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981331) 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, 73702 + ... + 73755.

It is an arithmetic number, because the mean of its divisors is an integer number (737290).

Almost surely, 2^3981339 is an apocalyptic number.

3981339 is a deficient number, since it is larger than the sum of its proper divisors (1916981).

3981339 is a wasteful number, since it uses less digits than its factorization.

3981339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147466 (or 147460 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 3981339 is about 1995.3292961313. The cubic root of 3981339 is about 158.4928662282.

The spelling of 3981339 in words is "three million, nine hundred eighty-one thousand, three hundred thirty-nine".