97330921 has 2 divisors, whose sum is σ = 97330922. Its totient is φ = 97330920.

The previous prime is 97330913. The next prime is 97330951. The reversal of 97330921 is 12903379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90250000 + 7080921 = 9500^2 + 2661^2 .

It is an emirp because it is prime and its reverse (12903379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97330921 - 2³ = 97330913 is a prime.

It is not a weakly prime, because it can be changed into another prime (97330951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48665460 + 48665461.

It is an arithmetic number, because the mean of its divisors is an integer number (48665461).

Almost surely, 2^97330921 is an apocalyptic number.

It is an amenable number.

97330921 is a deficient number, since it is larger than the sum of its proper divisors (1).

97330921 is an equidigital number, since it uses as much as digits as its factorization.

97330921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 97330921 is about 9865.6434660898. The cubic root of 97330921 is about 459.9919989157.

The spelling of 97330921 in words is "ninety-seven million, three hundred thirty thousand, nine hundred twenty-one".