998933197 has 4 divisors (see below), whose sum is σ = 999708256. Its totient is φ = 998158140.

The previous prime is 998933179. The next prime is 998933203. The reversal of 998933197 is 791339899.

998933197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791339899 = 7 ⋅113048557.

It is a cyclic number.

It is not a de Polignac number, because 998933197 - 2⁷ = 998933069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998933297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385593 + ... + 388174.

It is an arithmetic number, because the mean of its divisors is an integer number (249927064).

Almost surely, 2^998933197 is an apocalyptic number.

It is an amenable number.

998933197 is a deficient number, since it is larger than the sum of its proper divisors (775059).

998933197 is a wasteful number, since it uses less digits than its factorization.

998933197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775058.

The product of its digits is 3306744, while the sum is 58.

The square root of 998933197 is about 31605.9044641978. The cubic root of 998933197 is about 999.6442724729.

The spelling of 998933197 in words is "nine hundred ninety-eight million, nine hundred thirty-three thousand, one hundred ninety-seven".