998214929 has 2 divisors, whose sum is σ = 998214930. Its totient is φ = 998214928.

The previous prime is 998214907. The next prime is 998214983. The reversal of 998214929 is 929412899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782712529 + 215502400 = 27977^2 + 14680^2 .

It is a cyclic number.

It is not a de Polignac number, because 998214929 - 2⁸ = 998214673 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 (998214029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499107464 + 499107465.

It is an arithmetic number, because the mean of its divisors is an integer number (499107465).

Almost surely, 2^998214929 is an apocalyptic number.

It is an amenable number.

998214929 is a deficient number, since it is larger than the sum of its proper divisors (1).

998214929 is an equidigital number, since it uses as much as digits as its factorization.

998214929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 53.

The square root of 998214929 is about 31594.5395440415. The cubic root of 998214929 is about 999.4046219286.

The spelling of 998214929 in words is "nine hundred ninety-eight million, two hundred fourteen thousand, nine hundred twenty-nine".