97321247 has 2 divisors, whose sum is σ = 97321248. Its totient is φ = 97321246.

The previous prime is 97321193. The next prime is 97321297. The reversal of 97321247 is 74212379.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97321247 - 2¹² = 97317151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97321297) 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, 48660623 + 48660624.

It is an arithmetic number, because the mean of its divisors is an integer number (48660624).

Almost surely, 2^97321247 is an apocalyptic number.

97321247 is a deficient number, since it is larger than the sum of its proper divisors (1).

97321247 is an equidigital number, since it uses as much as digits as its factorization.

97321247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 97321247 is about 9865.1531665758. The cubic root of 97321247 is about 459.9767584351.

The spelling of 97321247 in words is "ninety-seven million, three hundred twenty-one thousand, two hundred forty-seven".