97081601 has 2 divisors, whose sum is σ = 97081602. Its totient is φ = 97081600.

The previous prime is 97081591. The next prime is 97081627. The reversal of 97081601 is 10618079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91680625 + 5400976 = 9575^2 + 2324^2 .

It is a cyclic number.

It is not a de Polignac number, because 97081601 - 2²⁶ = 29972737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97081651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48540800 + 48540801.

It is an arithmetic number, because the mean of its divisors is an integer number (48540801).

Almost surely, 2^97081601 is an apocalyptic number.

It is an amenable number.

97081601 is a deficient number, since it is larger than the sum of its proper divisors (1).

97081601 is an equidigital number, since it uses as much as digits as its factorization.

97081601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 97081601 is about 9852.9995940323. Note that the first 3 decimals coincide. The cubic root of 97081601 is about 459.5988957842.

The spelling of 97081601 in words is "ninety-seven million, eighty-one thousand, six hundred one".