97118911 has 2 divisors, whose sum is σ = 97118912. Its totient is φ = 97118910.

The previous prime is 97118863. The next prime is 97118921. The reversal of 97118911 is 11981179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97118911 - 2⁷ = 97118783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97118921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48559455 + 48559456.

It is an arithmetic number, because the mean of its divisors is an integer number (48559456).

Almost surely, 2^97118911 is an apocalyptic number.

97118911 is a deficient number, since it is larger than the sum of its proper divisors (1).

97118911 is an equidigital number, since it uses as much as digits as its factorization.

97118911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 37.

The square root of 97118911 is about 9854.8927442159. The cubic root of 97118911 is about 459.6577652932.

The spelling of 97118911 in words is "ninety-seven million, one hundred eighteen thousand, nine hundred eleven".