988700197 has 2 divisors, whose sum is σ = 988700198. Its totient is φ = 988700196.

The previous prime is 988700191. The next prime is 988700201. The reversal of 988700197 is 791007889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 951660801 + 37039396 = 30849^2 + 6086^2 .

It is a cyclic number.

It is not a de Polignac number, because 988700197 - 2¹⁵ = 988667429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 988700197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988700191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494350098 + 494350099.

It is an arithmetic number, because the mean of its divisors is an integer number (494350099).

Almost surely, 2^988700197 is an apocalyptic number.

It is an amenable number.

988700197 is a deficient number, since it is larger than the sum of its proper divisors (1).

988700197 is an equidigital number, since it uses as much as digits as its factorization.

988700197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 988700197 is about 31443.6034353571. The cubic root of 988700197 is about 996.2191219773.

The spelling of 988700197 in words is "nine hundred eighty-eight million, seven hundred thousand, one hundred ninety-seven".