97764959 has 2 divisors, whose sum is σ = 97764960. Its totient is φ = 97764958.

The previous prime is 97764923. The next prime is 97765007. The reversal of 97764959 is 95946779.

It is a weak prime.

It is an emirp because it is prime and its reverse (95946779) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97764959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97764259) 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, 48882479 + 48882480.

It is an arithmetic number, because the mean of its divisors is an integer number (48882480).

Almost surely, 2^97764959 is an apocalyptic number.

97764959 is a deficient number, since it is larger than the sum of its proper divisors (1).

97764959 is an equidigital number, since it uses as much as digits as its factorization.

97764959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 56.

The square root of 97764959 is about 9887.6164468491. The cubic root of 97764959 is about 460.6747485800.

The spelling of 97764959 in words is "ninety-seven million, seven hundred sixty-four thousand, nine hundred fifty-nine".