98147897 has 2 divisors, whose sum is σ = 98147898. Its totient is φ = 98147896.

The previous prime is 98147893. The next prime is 98147899. The reversal of 98147897 is 79874189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72097081 + 26050816 = 8491^2 + 5104^2 .

It is a cyclic number.

It is not a de Polignac number, because 98147897 - 2² = 98147893 is a prime.

Together with 98147899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98147893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49073948 + 49073949.

It is an arithmetic number, because the mean of its divisors is an integer number (49073949).

Almost surely, 2^98147897 is an apocalyptic number.

It is an amenable number.

98147897 is a deficient number, since it is larger than the sum of its proper divisors (1).

98147897 is an equidigital number, since it uses as much as digits as its factorization.

98147897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 53.

The square root of 98147897 is about 9906.9620469648. The cubic root of 98147897 is about 461.2754410998.

The spelling of 98147897 in words is "ninety-eight million, one hundred forty-seven thousand, eight hundred ninety-seven".