988676561 has 2 divisors, whose sum is σ = 988676562. Its totient is φ = 988676560.

The previous prime is 988676539. The next prime is 988676567. The reversal of 988676561 is 165676889.

It is a happy number.

988676561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544942336 + 443734225 = 23344^2 + 21065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988676561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988676497 and 988676506.

It is not a weakly prime, because it can be changed into another prime (988676567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494338280 + 494338281.

It is an arithmetic number, because the mean of its divisors is an integer number (494338281).

Almost surely, 2^988676561 is an apocalyptic number.

It is an amenable number.

988676561 is a deficient number, since it is larger than the sum of its proper divisors (1).

988676561 is an equidigital number, since it uses as much as digits as its factorization.

988676561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 56.

The square root of 988676561 is about 31443.2275856026. The cubic root of 988676561 is about 996.2111833312.

The spelling of 988676561 in words is "nine hundred eighty-eight million, six hundred seventy-six thousand, five hundred sixty-one".