97921067 has 2 divisors, whose sum is σ = 97921068. Its totient is φ = 97921066.

The previous prime is 97921039. The next prime is 97921073. The reversal of 97921067 is 76012979.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97921067 - 2¹² = 97916971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97921267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48960533 + 48960534.

It is an arithmetic number, because the mean of its divisors is an integer number (48960534).

Almost surely, 2^97921067 is an apocalyptic number.

97921067 is a deficient number, since it is larger than the sum of its proper divisors (1).

97921067 is an equidigital number, since it uses as much as digits as its factorization.

97921067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 97921067 is about 9895.5074149838. The cubic root of 97921067 is about 460.9198151530.

The spelling of 97921067 in words is "ninety-seven million, nine hundred twenty-one thousand, sixty-seven".