7996886977 has 2 divisors, whose sum is σ = 7996886978. Its totient is φ = 7996886976.

The previous prime is 7996886959. The next prime is 7996886983. The reversal of 7996886977 is 7796886997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7491941136 + 504945841 = 86556^2 + 22471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7996886977 is a prime.

It is not a weakly prime, because it can be changed into another prime (7996886477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3998443488 + 3998443489.

It is an arithmetic number, because the mean of its divisors is an integer number (3998443489).

Almost surely, 2^7996886977 is an apocalyptic number.

It is an amenable number.

7996886977 is a deficient number, since it is larger than the sum of its proper divisors (1).

7996886977 is an equidigital number, since it uses as much as digits as its factorization.

7996886977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576108288, while the sum is 76.

The square root of 7996886977 is about 89425.3150791206. The cubic root of 7996886977 is about 1999.7405477604.

The spelling of 7996886977 in words is "seven billion, nine hundred ninety-six million, eight hundred eighty-six thousand, nine hundred seventy-seven".