97375561 has 2 divisors, whose sum is σ = 97375562. Its totient is φ = 97375560.

The previous prime is 97375559. The next prime is 97375613. The reversal of 97375561 is 16557379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68161536 + 29214025 = 8256^2 + 5405^2 .

It is a cyclic number.

It is not a de Polignac number, because 97375561 - 2¹ = 97375559 is a prime.

Together with 97375559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (97375961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48687780 + 48687781.

It is an arithmetic number, because the mean of its divisors is an integer number (48687781).

Almost surely, 2^97375561 is an apocalyptic number.

It is an amenable number.

97375561 is a deficient number, since it is larger than the sum of its proper divisors (1).

97375561 is an equidigital number, since it uses as much as digits as its factorization.

97375561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 198450, while the sum is 43.

The square root of 97375561 is about 9867.9056035209. The cubic root of 97375561 is about 460.0623119747.

The spelling of 97375561 in words is "ninety-seven million, three hundred seventy-five thousand, five hundred sixty-one".