998958347 has 2 divisors, whose sum is σ = 998958348. Its totient is φ = 998958346.

The previous prime is 998958329. The next prime is 998958451. The reversal of 998958347 is 743859899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998958347 - 2¹⁸ = 998696203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 998958347.

It is not a weakly prime, because it can be changed into another prime (928958347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499479173 + 499479174.

It is an arithmetic number, because the mean of its divisors is an integer number (499479174).

Almost surely, 2^998958347 is an apocalyptic number.

998958347 is a deficient number, since it is larger than the sum of its proper divisors (1).

998958347 is an equidigital number, since it uses as much as digits as its factorization.

998958347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 62.

The square root of 998958347 is about 31606.3023303897. The cubic root of 998958347 is about 999.6526617034.

The spelling of 998958347 in words is "nine hundred ninety-eight million, nine hundred fifty-eight thousand, three hundred forty-seven".