97766941 has 2 divisors, whose sum is σ = 97766942. Its totient is φ = 97766940.

The previous prime is 97766939. The next prime is 97766947. The reversal of 97766941 is 14966779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73462041 + 24304900 = 8571^2 + 4930^2 .

It is an emirp because it is prime and its reverse (14966779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97766941 - 2¹ = 97766939 is a prime.

Together with 97766939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97766947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48883470 + 48883471.

It is an arithmetic number, because the mean of its divisors is an integer number (48883471).

Almost surely, 2^97766941 is an apocalyptic number.

It is an amenable number.

97766941 is a deficient number, since it is larger than the sum of its proper divisors (1).

97766941 is an equidigital number, since it uses as much as digits as its factorization.

97766941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 49.

The square root of 97766941 is about 9887.7166727208. The cubic root of 97766941 is about 460.6778616626.

The spelling of 97766941 in words is "ninety-seven million, seven hundred sixty-six thousand, nine hundred forty-one".