97765331 has 2 divisors, whose sum is σ = 97765332. Its totient is φ = 97765330.

The previous prime is 97765321. The next prime is 97765357. The reversal of 97765331 is 13356779.

It is a weak prime.

It is an emirp because it is prime and its reverse (13356779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97765331 - 2⁶ = 97765267 is a prime.

It is a super-2 number, since 2×97765331² = 19116119891079122, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (97765321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48882665 + 48882666.

It is an arithmetic number, because the mean of its divisors is an integer number (48882666).

Almost surely, 2^97765331 is an apocalyptic number.

97765331 is a deficient number, since it is larger than the sum of its proper divisors (1).

97765331 is an equidigital number, since it uses as much as digits as its factorization.

97765331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 41.

The square root of 97765331 is about 9887.6352582405. The cubic root of 97765331 is about 460.6753328752.

The spelling of 97765331 in words is "ninety-seven million, seven hundred sixty-five thousand, three hundred thirty-one".