988564601 has 2 divisors, whose sum is σ = 988564602. Its totient is φ = 988564600.

The previous prime is 988564589. The next prime is 988564607. The reversal of 988564601 is 106465889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 759829225 + 228735376 = 27565^2 + 15124^2 .

It is a cyclic number.

It is not a de Polignac number, because 988564601 - 2⁶ = 988564537 is a prime.

It is not a weakly prime, because it can be changed into another prime (988564607) 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 as a sum of consecutive naturals, namely, 494282300 + 494282301.

It is an arithmetic number, because the mean of its divisors is an integer number (494282301).

Almost surely, 2^988564601 is an apocalyptic number.

It is an amenable number.

988564601 is a deficient number, since it is larger than the sum of its proper divisors (1).

988564601 is an equidigital number, since it uses as much as digits as its factorization.

988564601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 988564601 is about 31441.4471836142. The cubic root of 988564601 is about 996.1735774990.

The spelling of 988564601 in words is "nine hundred eighty-eight million, five hundred sixty-four thousand, six hundred one".