3981095 has 16 divisors (see below), whose sum is σ = 4953312. Its totient is φ = 3070080.

The previous prime is 3981071. The next prime is 3981097. The reversal of 3981095 is 5901893.

It is not a de Polignac number, because 3981095 - 2¹⁰ = 3980071 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 (3981097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21905 + ... + 22085.

It is an arithmetic number, because the mean of its divisors is an integer number (309582).

Almost surely, 2^3981095 is an apocalyptic number.

3981095 is a deficient number, since it is larger than the sum of its proper divisors (972217).

3981095 is a wasteful number, since it uses less digits than its factorization.

3981095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 3981095 is about 1995.2681524046. The cubic root of 3981095 is about 158.4896283686.

The spelling of 3981095 in words is "three million, nine hundred eighty-one thousand, ninety-five".