97421297 has 2 divisors, whose sum is σ = 97421298. Its totient is φ = 97421296.

The previous prime is 97421281. The next prime is 97421327. The reversal of 97421297 is 79212479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96904336 + 516961 = 9844^2 + 719^2 .

It is an emirp because it is prime and its reverse (79212479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97421297 - 2⁴ = 97421281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97421497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48710648 + 48710649.

It is an arithmetic number, because the mean of its divisors is an integer number (48710649).

Almost surely, 2^97421297 is an apocalyptic number.

It is an amenable number.

97421297 is a deficient number, since it is larger than the sum of its proper divisors (1).

97421297 is an equidigital number, since it uses as much as digits as its factorization.

97421297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 97421297 is about 9870.2227431806. Note that the first 3 decimals coincide. The cubic root of 97421297 is about 460.1343290744.

The spelling of 97421297 in words is "ninety-seven million, four hundred twenty-one thousand, two hundred ninety-seven".