97221071 has 2 divisors, whose sum is σ = 97221072. Its totient is φ = 97221070.

The previous prime is 97221041. The next prime is 97221077. The reversal of 97221071 is 17012279.

It is a strong prime.

It is an emirp because it is prime and its reverse (17012279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97221071 - 2¹⁴ = 97204687 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97221077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48610535 + 48610536.

It is an arithmetic number, because the mean of its divisors is an integer number (48610536).

Almost surely, 2^97221071 is an apocalyptic number.

97221071 is a deficient number, since it is larger than the sum of its proper divisors (1).

97221071 is an equidigital number, since it uses as much as digits as its factorization.

97221071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 97221071 is about 9860.0745940383. The cubic root of 97221071 is about 459.8188811222.

The spelling of 97221071 in words is "ninety-seven million, two hundred twenty-one thousand, seventy-one".