75989663 has 2 divisors, whose sum is σ = 75989664. Its totient is φ = 75989662.

The previous prime is 75989659. The next prime is 75989671. The reversal of 75989663 is 36698957.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75989663 - 2² = 75989659 is a prime.

It is a Sophie Germain 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 (75989633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37994831 + 37994832.

It is an arithmetic number, because the mean of its divisors is an integer number (37994832).

Almost surely, 2^75989663 is an apocalyptic number.

75989663 is a deficient number, since it is larger than the sum of its proper divisors (1).

75989663 is an equidigital number, since it uses as much as digits as its factorization.

75989663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The square root of 75989663 is about 8717.2049993103. The cubic root of 75989663 is about 423.5631532967.

The spelling of 75989663 in words is "seventy-five million, nine hundred eighty-nine thousand, six hundred sixty-three".