9960039977 has 2 divisors, whose sum is σ = 9960039978. Its totient is φ = 9960039976.

The previous prime is 9960039959. The next prime is 9960040001. The reversal of 9960039977 is 7799300699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7584842281 + 2375197696 = 87091^2 + 48736^2 .

It is a cyclic number.

It is not a de Polignac number, because 9960039977 - 2³⁰ = 8886298153 is a prime.

It is not a weakly prime, because it can be changed into another prime (9966039977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4980019988 + 4980019989.

It is an arithmetic number, because the mean of its divisors is an integer number (4980019989).

Almost surely, 2^9960039977 is an apocalyptic number.

It is an amenable number.

9960039977 is a deficient number, since it is larger than the sum of its proper divisors (1).

9960039977 is an equidigital number, since it uses as much as digits as its factorization.

9960039977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5786802, while the sum is 59.

The square root of 9960039977 is about 99799.9998847695. Note that the first 3 decimals coincide. The cubic root of 9960039977 is about 2151.5611504104.

The spelling of 9960039977 in words is "nine billion, nine hundred sixty million, thirty-nine thousand, nine hundred seventy-seven".