97766663 has 2 divisors, whose sum is σ = 97766664. Its totient is φ = 97766662.

The previous prime is 97766633. The next prime is 97766671. The reversal of 97766663 is 36666779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97766663 - 2⁸ = 97766407 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97766633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48883331 + 48883332.

It is an arithmetic number, because the mean of its divisors is an integer number (48883332).

Almost surely, 2^97766663 is an apocalyptic number.

97766663 is a deficient number, since it is larger than the sum of its proper divisors (1).

97766663 is an equidigital number, since it uses as much as digits as its factorization.

97766663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 50.

The square root of 97766663 is about 9887.7026148646. The cubic root of 97766663 is about 460.6774250169.

The spelling of 97766663 in words is "ninety-seven million, seven hundred sixty-six thousand, six hundred sixty-three".