989896099 has 2 divisors, whose sum is σ = 989896100. Its totient is φ = 989896098.

The previous prime is 989896091. The next prime is 989896109. The reversal of 989896099 is 990698989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989896099 - 2³ = 989896091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (989896091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494948049 + 494948050.

It is an arithmetic number, because the mean of its divisors is an integer number (494948050).

Almost surely, 2^989896099 is an apocalyptic number.

989896099 is a deficient number, since it is larger than the sum of its proper divisors (1).

989896099 is an equidigital number, since it uses as much as digits as its factorization.

989896099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22674816, while the sum is 67.

The square root of 989896099 is about 31462.6143065067. The cubic root of 989896099 is about 996.6206256936.

The spelling of 989896099 in words is "nine hundred eighty-nine million, eight hundred ninety-six thousand, ninety-nine".