998590267 has 2 divisors, whose sum is σ = 998590268. Its totient is φ = 998590266.

The previous prime is 998590261. The next prime is 998590273. The reversal of 998590267 is 762095899.

It is a balanced prime because it is at equal distance from previous prime (998590261) and next prime (998590273).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998590267 is a prime.

It is not a weakly prime, because it can be changed into another prime (998590261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499295133 + 499295134.

It is an arithmetic number, because the mean of its divisors is an integer number (499295134).

Almost surely, 2^998590267 is an apocalyptic number.

998590267 is a deficient number, since it is larger than the sum of its proper divisors (1).

998590267 is an equidigital number, since it uses as much as digits as its factorization.

998590267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 998590267 is about 31600.4789045989. The cubic root of 998590267 is about 999.5298680105.

The spelling of 998590267 in words is "nine hundred ninety-eight million, five hundred ninety thousand, two hundred sixty-seven".