988455197 has 2 divisors, whose sum is σ = 988455198. Its totient is φ = 988455196.

The previous prime is 988455187. The next prime is 988455239. The reversal of 988455197 is 791554889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 852289636 + 136165561 = 29194^2 + 11669^2 .

It is an emirp because it is prime and its reverse (791554889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988455197 - 2⁶ = 988455133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988455187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494227598 + 494227599.

It is an arithmetic number, because the mean of its divisors is an integer number (494227599).

Almost surely, 2^988455197 is an apocalyptic number.

It is an amenable number.

988455197 is a deficient number, since it is larger than the sum of its proper divisors (1).

988455197 is an equidigital number, since it uses as much as digits as its factorization.

988455197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 56.

The square root of 988455197 is about 31439.7073300627. The cubic root of 988455197 is about 996.1368274493.

The spelling of 988455197 in words is "nine hundred eighty-eight million, four hundred fifty-five thousand, one hundred ninety-seven".