988289513 has 2 divisors, whose sum is σ = 988289514. Its totient is φ = 988289512.

The previous prime is 988289483. The next prime is 988289537. The reversal of 988289513 is 315982889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544428889 + 443860624 = 23333^2 + 21068^2 .

It is an emirp because it is prime and its reverse (315982889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988289513 - 2¹⁴ = 988273129 is a prime.

It is not a weakly prime, because it can be changed into another prime (988289213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494144756 + 494144757.

It is an arithmetic number, because the mean of its divisors is an integer number (494144757).

Almost surely, 2^988289513 is an apocalyptic number.

It is an amenable number.

988289513 is a deficient number, since it is larger than the sum of its proper divisors (1).

988289513 is an equidigital number, since it uses as much as digits as its factorization.

988289513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 53.

The square root of 988289513 is about 31437.0722714441. The cubic root of 988289513 is about 996.0811671432.

The spelling of 988289513 in words is "nine hundred eighty-eight million, two hundred eighty-nine thousand, five hundred thirteen".