998687411 has 2 divisors, whose sum is σ = 998687412. Its totient is φ = 998687410.

The previous prime is 998687407. The next prime is 998687419. The reversal of 998687411 is 114786899.

It is a weak prime.

It is an emirp because it is prime and its reverse (114786899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998687411 - 2² = 998687407 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (998687419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499343705 + 499343706.

It is an arithmetic number, because the mean of its divisors is an integer number (499343706).

Almost surely, 2^998687411 is an apocalyptic number.

998687411 is a deficient number, since it is larger than the sum of its proper divisors (1).

998687411 is an equidigital number, since it uses as much as digits as its factorization.

998687411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 53.

The square root of 998687411 is about 31602.0159325319. The cubic root of 998687411 is about 999.5622787614.

The spelling of 998687411 in words is "nine hundred ninety-eight million, six hundred eighty-seven thousand, four hundred eleven".