3916081 has 4 divisors (see below), whose sum is σ = 4217332. Its totient is φ = 3614832.

The previous prime is 3916079. The next prime is 3916091. The reversal of 3916081 is 1806193.

It is a happy number.

3916081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 245025 + 3671056 = 495^2 + 1916^2 .

It is not a de Polignac number, because 3916081 - 2¹ = 3916079 is a prime.

It is a super-2 number, since 2×3916081² = 30671380797122, which contains 22 as substring.

It is a Duffinian number.

3916081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3916021) 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 3 ways as a sum of consecutive naturals, for example, 150606 + ... + 150631.

It is an arithmetic number, because the mean of its divisors is an integer number (1054333).

Almost surely, 2^3916081 is an apocalyptic number.

It is an amenable number.

3916081 is a deficient number, since it is larger than the sum of its proper divisors (301251).

3916081 is a wasteful number, since it uses less digits than its factorization.

3916081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301250.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3916081 is about 1978.9090428820. The cubic root of 3916081 is about 157.6221409152.

The spelling of 3916081 in words is "three million, nine hundred sixteen thousand, eighty-one".