988289629 has 2 divisors, whose sum is σ = 988289630. Its totient is φ = 988289628.

The previous prime is 988289567. The next prime is 988289651. The reversal of 988289629 is 926982889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967832100 + 20457529 = 31110^2 + 4523^2 .

It is a cyclic number.

It is not a de Polignac number, because 988289629 - 2¹¹ = 988287581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988289699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494144814 + 494144815.

It is an arithmetic number, because the mean of its divisors is an integer number (494144815).

Almost surely, 2^988289629 is an apocalyptic number.

It is an amenable number.

988289629 is a deficient number, since it is larger than the sum of its proper divisors (1).

988289629 is an equidigital number, since it uses as much as digits as its factorization.

988289629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 61.

The square root of 988289629 is about 31437.0741163996. The cubic root of 988289629 is about 996.0812061147.

The spelling of 988289629 in words is "nine hundred eighty-eight million, two hundred eighty-nine thousand, six hundred twenty-nine".