998150843 has 2 divisors, whose sum is σ = 998150844. Its totient is φ = 998150842.

The previous prime is 998150821. The next prime is 998150861. The reversal of 998150843 is 348051899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998150843 is a prime.

It is a super-2 number, since 2×998150843² = 1992610210763221298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (998150143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499075421 + 499075422.

It is an arithmetic number, because the mean of its divisors is an integer number (499075422).

Almost surely, 2^998150843 is an apocalyptic number.

998150843 is a deficient number, since it is larger than the sum of its proper divisors (1).

998150843 is an equidigital number, since it uses as much as digits as its factorization.

998150843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 998150843 is about 31593.5253335236. The cubic root of 998150843 is about 999.3832340113.

The spelling of 998150843 in words is "nine hundred ninety-eight million, one hundred fifty thousand, eight hundred forty-three".