97984111 has 2 divisors, whose sum is σ = 97984112. Its totient is φ = 97984110.

The previous prime is 97984109. The next prime is 97984123. The reversal of 97984111 is 11148979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97984111 - 2¹ = 97984109 is a prime.

Together with 97984109, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97984511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48992055 + 48992056.

It is an arithmetic number, because the mean of its divisors is an integer number (48992056).

Almost surely, 2^97984111 is an apocalyptic number.

97984111 is a deficient number, since it is larger than the sum of its proper divisors (1).

97984111 is an equidigital number, since it uses as much as digits as its factorization.

97984111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 97984111 is about 9898.6923883915. The cubic root of 97984111 is about 461.0187111169.

The spelling of 97984111 in words is "ninety-seven million, nine hundred eighty-four thousand, one hundred eleven".