998275211 has 2 divisors, whose sum is σ = 998275212. Its totient is φ = 998275210.

The previous prime is 998275199. The next prime is 998275247. The reversal of 998275211 is 112572899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998275211 is a prime.

It is not a weakly prime, because it can be changed into another prime (998275711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499137605 + 499137606.

It is an arithmetic number, because the mean of its divisors is an integer number (499137606).

Almost surely, 2^998275211 is an apocalyptic number.

998275211 is a deficient number, since it is larger than the sum of its proper divisors (1).

998275211 is an equidigital number, since it uses as much as digits as its factorization.

998275211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The square root of 998275211 is about 31595.4935236024. The cubic root of 998275211 is about 999.4247394721.

The spelling of 998275211 in words is "nine hundred ninety-eight million, two hundred seventy-five thousand, two hundred eleven".