998920411 has 2 divisors, whose sum is σ = 998920412. Its totient is φ = 998920410.

The previous prime is 998920387. The next prime is 998920423. The reversal of 998920411 is 114029899.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (114029899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 998920411 - 2²³ = 990531803 is a prime.

It is not a weakly prime, because it can be changed into another prime (998920441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499460205 + 499460206.

It is an arithmetic number, because the mean of its divisors is an integer number (499460206).

Almost surely, 2^998920411 is an apocalyptic number.

998920411 is a deficient number, since it is larger than the sum of its proper divisors (1).

998920411 is an equidigital number, since it uses as much as digits as its factorization.

998920411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 998920411 is about 31605.7021912186. The cubic root of 998920411 is about 999.6400074209.

The spelling of 998920411 in words is "nine hundred ninety-eight million, nine hundred twenty thousand, four hundred eleven".