97644061 has 2 divisors, whose sum is σ = 97644062. Its totient is φ = 97644060.

The previous prime is 97644047. The next prime is 97644089. The reversal of 97644061 is 16044679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54479161 + 43164900 = 7381^2 + 6570^2 .

It is a cyclic number.

It is not a de Polignac number, because 97644061 - 2⁷ = 97643933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97644061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97644011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48822030 + 48822031.

It is an arithmetic number, because the mean of its divisors is an integer number (48822031).

Almost surely, 2^97644061 is an apocalyptic number.

It is an amenable number.

97644061 is a deficient number, since it is larger than the sum of its proper divisors (1).

97644061 is an equidigital number, since it uses as much as digits as its factorization.

97644061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 97644061 is about 9881.5009487426. The cubic root of 97644061 is about 460.4847772113.

The spelling of 97644061 in words is "ninety-seven million, six hundred forty-four thousand, sixty-one".