97688827 has 2 divisors, whose sum is σ = 97688828. Its totient is φ = 97688826.

The previous prime is 97688779. The next prime is 97688831. The reversal of 97688827 is 72888679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97688827 - 2²³ = 89300219 is a prime.

It is not a weakly prime, because it can be changed into another prime (97688887) 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, 48844413 + 48844414.

It is an arithmetic number, because the mean of its divisors is an integer number (48844414).

Almost surely, 2^97688827 is an apocalyptic number.

97688827 is a deficient number, since it is larger than the sum of its proper divisors (1).

97688827 is an equidigital number, since it uses as much as digits as its factorization.

97688827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 55.

The square root of 97688827 is about 9883.7658308966. The cubic root of 97688827 is about 460.5551379067. Note that the first 3 decimals are identical.

The spelling of 97688827 in words is "ninety-seven million, six hundred eighty-eight thousand, eight hundred twenty-seven".