3082978681 has 4 divisors (see below), whose sum is σ = 3096441700. Its totient is φ = 3069515664.

The previous prime is 3082978663. The next prime is 3082978687. The reversal of 3082978681 is 1868792803.

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 1375223056 + 1707755625 = 37084^2 + 41325^2 .

It is a cyclic number.

It is not a de Polignac number, because 3082978681 - 2⁵ = 3082978649 is a prime.

It is a super-2 number, since 2×3082978681² = 19009515095000999522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3082978687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6731166 + ... + 6731623.

It is an arithmetic number, because the mean of its divisors is an integer number (774110425).

Almost surely, 2^3082978681 is an apocalyptic number.

It is an amenable number.

3082978681 is a deficient number, since it is larger than the sum of its proper divisors (13463019).

3082978681 is a wasteful number, since it uses less digits than its factorization.

3082978681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13463018.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 3082978681 is about 55524.5772698901. The cubic root of 3082978681 is about 1455.4261504108.

The spelling of 3082978681 in words is "three billion, eighty-two million, nine hundred seventy-eight thousand, six hundred eighty-one".