97645061 has 2 divisors, whose sum is σ = 97645062. Its totient is φ = 97645060.

The previous prime is 97645057. The next prime is 97645073. The reversal of 97645061 is 16054679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90916225 + 6728836 = 9535^2 + 2594^2 .

It is an emirp because it is prime and its reverse (16054679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97645061 - 2² = 97645057 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97645021) 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, 48822530 + 48822531.

It is an arithmetic number, because the mean of its divisors is an integer number (48822531).

Almost surely, 2^97645061 is an apocalyptic number.

It is an amenable number.

97645061 is a deficient number, since it is larger than the sum of its proper divisors (1).

97645061 is an equidigital number, since it uses as much as digits as its factorization.

97645061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 97645061 is about 9881.5515482135. The cubic root of 97645061 is about 460.4863491902.

The spelling of 97645061 in words is "ninety-seven million, six hundred forty-five thousand, sixty-one".