97594421 has 2 divisors, whose sum is σ = 97594422. Its totient is φ = 97594420.

The previous prime is 97594403. The next prime is 97594423. The reversal of 97594421 is 12449579.

97594421 = 6985² + 6986².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48804196 + 48790225 = 6986^2 + 6985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97594421 is a prime.

Together with 97594423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97594423) 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, 48797210 + 48797211.

It is an arithmetic number, because the mean of its divisors is an integer number (48797211).

Almost surely, 2^97594421 is an apocalyptic number.

97594421 is the 6986-th centered square number.

It is an amenable number.

97594421 is a deficient number, since it is larger than the sum of its proper divisors (1).

97594421 is an equidigital number, since it uses as much as digits as its factorization.

97594421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 97594421 is about 9878.9888652635. The cubic root of 97594421 is about 460.4067306861.

The spelling of 97594421 in words is "ninety-seven million, five hundred ninety-four thousand, four hundred twenty-one".