988789699 has 2 divisors, whose sum is σ = 988789700. Its totient is φ = 988789698.

The previous prime is 988789667. The next prime is 988789709. The reversal of 988789699 is 996987889.

It is a strong prime.

It is an emirp because it is prime and its reverse (996987889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988789699 - 2⁵ = 988789667 is a prime.

It is not a weakly prime, because it can be changed into another prime (988789639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494394849 + 494394850.

It is an arithmetic number, because the mean of its divisors is an integer number (494394850).

Almost surely, 2^988789699 is an apocalyptic number.

988789699 is a deficient number, since it is larger than the sum of its proper divisors (1).

988789699 is an equidigital number, since it uses as much as digits as its factorization.

988789699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141087744, while the sum is 73.

The square root of 988789699 is about 31445.0266178930. The cubic root of 988789699 is about 996.2491819536.

The spelling of 988789699 in words is "nine hundred eighty-eight million, seven hundred eighty-nine thousand, six hundred ninety-nine".