2098658489 has 2 divisors, whose sum is σ = 2098658490. Its totient is φ = 2098658488.

The previous prime is 2098658459. The next prime is 2098658503. The reversal of 2098658489 is 9848568902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1932042025 + 166616464 = 43955^2 + 12908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2098658489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2098658459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049329244 + 1049329245.

It is an arithmetic number, because the mean of its divisors is an integer number (1049329245).

Almost surely, 2^2098658489 is an apocalyptic number.

It is an amenable number.

2098658489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2098658489 is an equidigital number, since it uses as much as digits as its factorization.

2098658489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 59.

The square root of 2098658489 is about 45811.1175262075. The cubic root of 2098658489 is about 1280.3064226105.

The spelling of 2098658489 in words is "two billion, ninety-eight million, six hundred fifty-eight thousand, four hundred eighty-nine".