97680811 has 2 divisors, whose sum is σ = 97680812. Its totient is φ = 97680810.

The previous prime is 97680809. The next prime is 97680857. The reversal of 97680811 is 11808679.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97680811 - 2¹ = 97680809 is a prime.

Together with 97680809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97680911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48840405 + 48840406.

It is an arithmetic number, because the mean of its divisors is an integer number (48840406).

Almost surely, 2^97680811 is an apocalyptic number.

97680811 is a deficient number, since it is larger than the sum of its proper divisors (1).

97680811 is an equidigital number, since it uses as much as digits as its factorization.

97680811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 97680811 is about 9883.3603091256. The cubic root of 97680811 is about 460.5425403863.

The spelling of 97680811 in words is "ninety-seven million, six hundred eighty thousand, eight hundred eleven".