3904582081 has 4 divisors (see below), whose sum is σ = 3904713172. Its totient is φ = 3904450992.

The previous prime is 3904582037. The next prime is 3904582093. The reversal of 3904582081 is 1802854093.

3904582081 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 965966400 + 2938615681 = 31080^2 + 54209^2 .

It is a cyclic number.

It is not a de Polignac number, because 3904582081 - 2¹¹ = 3904580033 is a prime.

It is a super-2 number, since 2×3904582081² = 30491522454532581122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3904580081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3091 + ... + 88423.

It is an arithmetic number, because the mean of its divisors is an integer number (976178293).

Almost surely, 2^3904582081 is an apocalyptic number.

It is an amenable number.

3904582081 is a deficient number, since it is larger than the sum of its proper divisors (131091).

3904582081 is an equidigital number, since it uses as much as digits as its factorization.

3904582081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131090.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 3904582081 is about 62486.6552233355. The cubic root of 3904582081 is about 1574.6771261899.

The spelling of 3904582081 in words is "three billion, nine hundred four million, five hundred eighty-two thousand, eighty-one".