97644011 has 2 divisors, whose sum is σ = 97644012. Its totient is φ = 97644010.

The previous prime is 97643977. The next prime is 97644023. The reversal of 97644011 is 11044679.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97644011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97644031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48822005 + 48822006.

It is an arithmetic number, because the mean of its divisors is an integer number (48822006).

Almost surely, 2^97644011 is an apocalyptic number.

97644011 is a deficient number, since it is larger than the sum of its proper divisors (1).

97644011 is an equidigital number, since it uses as much as digits as its factorization.

97644011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 97644011 is about 9881.4984187622. The cubic root of 97644011 is about 460.4846986121.

The spelling of 97644011 in words is "ninety-seven million, six hundred forty-four thousand, eleven".