998808337 has 2 divisors, whose sum is σ = 998808338. Its totient is φ = 998808336.

The previous prime is 998808319. The next prime is 998808341. The reversal of 998808337 is 733808899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994519296 + 4289041 = 31536^2 + 2071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998808337 is a prime.

It is not a weakly prime, because it can be changed into another prime (998808367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499404168 + 499404169.

It is an arithmetic number, because the mean of its divisors is an integer number (499404169).

Almost surely, 2^998808337 is an apocalyptic number.

It is an amenable number.

998808337 is a deficient number, since it is larger than the sum of its proper divisors (1).

998808337 is an equidigital number, since it uses as much as digits as its factorization.

998808337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 998808337 is about 31603.9291386372. The cubic root of 998808337 is about 999.6026211109.

The spelling of 998808337 in words is "nine hundred ninety-eight million, eight hundred eight thousand, three hundred thirty-seven".