97847 has 2 divisors, whose sum is σ = 97848. Its totient is φ = 97846.

The previous prime is 97843. The next prime is 97849. The reversal of 97847 is 74879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97847 - 2² = 97843 is a prime.

Together with 97849, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 97847.

It is not a weakly prime, because it can be changed into another prime (97841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48923 + 48924.

It is an arithmetic number, because the mean of its divisors is an integer number (48924).

2⁹⁷⁸⁴⁷ is an apocalyptic number.

97847 is a deficient number, since it is larger than the sum of its proper divisors (1).

97847 is an equidigital number, since it uses as much as digits as its factorization.

97847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 97847 is about 312.8050511101. The cubic root of 97847 is about 46.0803573367.

The spelling of 97847 in words is "ninety-seven thousand, eight hundred forty-seven".